does not do it all the time but runs great while warming up for about 5 to 10 minutes then goes into a rich idle ,but does come out of it some times going down the road at low speeds it acts like it hanging there until you step on fuel pop out of throttle body and goes lots of times will come into a. IMPORTANT TECHNICAL ARTICLEJetting and Tuning Weber Carbs. How can you tell if an off-idle stumble is caused by a lean or a rich condition? A carb running rich, as well as a carb running lean, can cause an off-idle stumble or hesitation upon acceleration. EGO Sensor - Exhaust Gas Oxygen sensor, used to describe the sensor in the exhaust that measures the lean/rich state of the AFR. Has anyone done this on a LS1 with success? It's something I'm goig to work on when I get around to camming my Ute. JDP Motorsports, LLC has been using HP Tuners as their calibration s oftware for years, and it is our goal to become everyone's first choice when it comes to tuning. What could cause me to be rich at idle 14. Re: Rich idle, bog, no hole shot. Tuning your idle and coast-down can make a big difference in MPG and overall throttle response. I fixed my cold startup issue in HP Tuners, as well as a few others on here with the 03/04 PCMmaybe you should double check everything again, or may I suggest you take your car to a real tuner to do it for you. Idle timing advance, A/F ratio, sequential injection & injector end angle are contributing factors. File Connect -This will ping the vehicle you’ve connected your cable to to attempt to. But, I had this same 'extremely rich' (10:1 or 11:1) cold startup issue that everyone else is having. Of course if you are tuning GM vehicles on another platform, everything we're going to talk about today will also port across quite nicely. One other note I would like to add is the new motors these days come with fuel mixture screws blocked off by a little brass plug and the motors leaned out so much that they don't run worth anything in the real world, after you get all the carbs clean remove the little brass plug on the side of each carb and adjust the mixture screws to get it to run better. I cruise between 40 and 60 mph around 2250-2750 rpm with my 3. “Fuel trim” is the amount of fuel added or subtracted by the PCM. 0L,I had a CEL light for a P0430, Catalyst System Efficiency Below Threshold (Bank 2), and my RPM's would not go above 2500 unless I floored it. As expected, the 2,150 cc/min injectors were far too large for our 2. 2) Pilot screw or Air screw also sometimes called a mixture screw. Sandrail Tech. Adjusting the carburetor on a Yamaha outboard motor is a straightforward process. The idle and off-idle systems are the hardest part of the fuel system to get the fuel curve correct with a blow-through supercharger system, extreme care must be taken to properly size the idle fuel and air restrictions in order to obtain the correct idle and part throttle fuel mixtures. Never set the idle so the chain runs when the throttle is released. Sometimes with basic out of the box carbs they will get even more rich once you turn the idle up enough to uncover the transfer slots,but the HP carbs are pretty well sorted out in that regard. To get access to the beta you should email HP Tuners tech support email and they will add it to your customer area so that you can download it. Cruise being ok but idle being too rich suggests your low slope is off. 0-30 Kernel version. EFI Idle Tuning Notes I finally achieved, what I consider, an excellent idling enginebut it wasn't easy. my car had some idling issues before my cam install and after the cam install they got alot worse. Re-check idle quality and repeat as needed. The GM 4 wire IAC has worked OK for me, although like so much with TunerStudio there's more than enough parameters to get totally lost. OBDII VDF Editor Update: There is an update (version 2. I won't be able to do any major logging until this weekend but I was logging the truck with it idling and it's running pretty crappy. How to avoid staying too rich at idle:. 65 GPH, depending on engine load from lights, HVAC, etc. Carburetor troubleshooting is simple once the basic principles are known. The Idle fuel restrictions and idle air bleeds determine the ratio and also the mix as you found out. ECT tab= le and change cell values to desired idle RPM. I can just barely get a 1/4 ignition wrench on to it, but there is barely enough room to turn it more than a quarter turn each time. IDLE TUNING The following is a collection of idle tuning notes, tips ‘n tricks and How-2’s for idle tuning a big cam (or any cam for that matter) that I used when dialing in my 248/254,. Without an equal 4 corner Idle cicuit, sometimes it is best to have the rear transistion slots just barely covered by the rear throttle plates. Compare TunerStudio Editions TunerStudio! TunerStudio brings a whole new level of refinement for tuning software. Or sign in with one of these services. Thanks again, for the excellent service! Keep it up!. Using the "Maths" section supplied by HP Tuners, you can see that I have created custom PIDs which record Short Term Fuel Trims for Bank 1 and another for Bank 2 - in relation to the calculated Pressure. It lays out information in a very easy to read display with all of the parameters that we need to look into. Ideally, you’ll want the timing to be set to slightly below the timing that would give it the most power – on most piston engines, this typically works out to somewhere in the 10 to 18 degree range. *Email out to tuner and checked other forums, but needing help* Rich Idle. - For cruise and idle situations a value of 14. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you’ll ever need for your modern OBDII vehicle. I had a dyno tune and the tuner added alot of frequency to the maf to supposedly get the afr into the mid 12s. In this document, we will go through the basic steps to get your idle control setup using VCM Suite. 165cc 2-stroke 1984 1994, 9. I'm running map 280 right now, leaned it across a pretty broad area of 2048 - 4352 rpm, at TPS range of 14. This comes with an iron block and head engine to displace 390 cubic inches, with a compression ratio of 17. FILE Open -Open an HPT or BIN File. my car had some idling issues before my cam install and after the cam install they got alot worse. 5:1 for a smooth idle, while others will run happily at 13-13. For mild cams, an idle ignition timing advance of approximately 16-18 degrees will do. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you'll ever need for your modern OBDII vehicle. The first immediate thing that I noticed is that my surging idle problem is no gone and the idle is back to normal around 900 RPM, I can't tell you how happy that makes me, I've been chasing the idle issue for quite awhile. My engine is a modified Chevy 350 with ported double hump heads, roller lifters and lots of more performance stuff. Home Forums > Drivetrain & Performance > High Performance Modifications > Calling all carb tuners, suggestions needed? If the idle gets too rich to handle with. code 13 and 45. Enjoy! And if you see areas for improvement please let me know. Settings for Siemens Deka (Mototron) 60 lb/hr; Car runs well enough to drive but but idle is sometimes rich, sometimes lean under the same conditions. The thing that I don't understand is if I'm coming to stop, as soon as I hit 1 mph or 0 mph its like a switch and goes right to 12. It has an O-ring on it where it goes into the LIM, and there is a tab welded on part way back with a notch that goes over a stud on the rear head, and a 13mm nut that is supposed to go over that. I got it fired up with a custom base tune from BAMA, and it runs good, but dies as soon as you let off the gas (did this on the stock tune as well). EGO Sensor - Exhaust Gas Oxygen sensor, used to describe the sensor in the exhaust that measures the lean/rich state of the AFR. I'm not sure what all of flak is about HP Tuners. Superchips offers the world's best-selling lineup of performance programmers and tuners for both gas and diesel trucks as well as Jeep® Wrangler. How can you tell if an off-idle stumble is caused by a lean or a rich condition? A carb running rich, as well as a carb running lean, can cause an off-idle stumble or hesitation upon acceleration. Hopefully you’ve already worked out your idle & set your ifr table. This will ensure that no incorrect adjustments are. The Platinum i3 is designed for those who want the best of both worlds, pre-loaded, high-performance tunes in addition to custom tuning capability. If there are any experienced/certified OMC outboard techs out there could you please give me some ideas on this age old problem - seems like it happens every other year - Just started engine today after winter storage - Its a 10 year old 35 hp Johnson (3 cylinder) - Got brand new fuel tank & hose, fresh gas, new battery, hoping I was ready to run - The motor starts just fine with choke on and. File Connect -This will ping the vehicle you’ve connected your cable to to attempt to. 1) Idle screw: Let engine warm up. If you have the air/fuel ratio set properly and your engine can idle somewhat decently, even if it's by holding the throttle pedal down off closed-throttle to keep the engine from stalling, you can begin by setting a ball-park ignition advance value. ive just started this step and. It must be remembered that carburetor jetting is determined by the throttle position, not engine speed. EcoBoosted: Finding Another 80 HP in Ford’s Twin-Turbo’d 2. This will allow fast idle on cold start-ups and you won't have to "feather" the throttle for 2-3 minutes till it will idle on it's own. It allows you to connect to the ECU through the OBD diagnostic port underneath your steering wheel and edit the values and tables inside your ECU (also more commonly called a VCM by the HPT crew), and basically tune your car to the mods that you have. Although volumetric efficiency varies with operating range (rpm), it is what it is--fluid flow dynamics. Idle Air/Fuel Ratio Tuning you can stand where the exhaust exits and see how rich it smells. HP Tuners, the home of VCM Suite and the MPVI since 2003. Getting Things In Action. The number one cause for high idle is an imbalance in air pressure. Horsepower for the little 2. HP Tuners ~22 PSI, 8-11 *Timing. I have an LC-1 because it was cheap and I was not afraid of a little wiring. How to Stage 1 kit a Harley-Davidson Sportster. (Note: The engine idle speed is controlled by the computer and is NOT adjustable. 7:1 AFR and divide by 1. That would be needing to relearn for a. a tuning guide i found based on hptuners. If the engine is having troubles at low rpm (idle to 1/4. The challenge to tuners has always been,. 103cc 2-stroke 1984 1994, 6 hp 2 cyl. Works on Honda Odyssey, Pilot, Ridgeline, Accord & Acura RDX/TLX. What is HP Tuners? HP Tuners is an ECU tuning device. Tuner took out 40% of fuel at idle from startup tune as it was so rich. I can tweak them exactly as I want. Megasquirt Tuning Basics-Initial Startup & Fuel VE. Gen IV E38/E67 Idle control. I am having an issue at idle when sitting at stoplights. Is the other installments somewhere, was curious about the changes you made on the ford with the roush supercharger and how you were able to read the roush tune file with HP tuners. Idle speed is inconsistent, sometimes dies. 5 out of gear (TH350) and 14. With a carburetor, if you need more idle speed you just turn the curb idle screw clockwise and this opens the throttle blades to allow more air into the engine. Although volumetric efficiency varies with operating range (rpm), it is what it is--fluid flow dynamics. When I went into hp tuners I was able to turn off ltfts. mid-way between these too-rich and too-lean positions. I got it fired up with a custom base tune from BAMA, and it runs good, but dies as soon as you let off the gas (did this on the stock tune as well). Carbureted engines can suffer problems as well. I am doing a MAS tune with VE system turned off. Once I have those times I am going to swap intakes as I traded a friend for an RPM air gap so I can shed some light on the LD340 vs Air Gap intake comparison. Holley has you covered. Now I was doing some searching around getting a fuel smell at idle even if it's actually not rich and I came across a HP Tuners thread that talks about changing injection timing to fix this. The challenge to tuners has always been,. Using the "Maths" section supplied by HP Tuners, you can see that I have created custom PIDs which record Short Term Fuel Trims for Bank 1 and another for Bank 2 - in relation to the calculated Pressure. How to Fix High Idle Step by step automotive repair guide on how to troubleshoot and fix an engine that is idling high (fast) or low (slow). You can verify this via fuel trims from factory O2 sensors, or via a wideband O2 sensor. Fairly simple changes fixed the issue. My issue is my afr at idle. Talking about "putting the wrong tune in" or whatever and all of this talk about blowing up your Titan or it going in limp mode. Track Addict can also stream live data to the HP Tuners Live Telemetry website where it can be viewed by. To adjust your idle speed, find the idle mixture screw that limits the flow of fuel at idle. If you have a large fan, use it while adjusting the mixture. Idle The PCM has a number of parameters that influence the idle behavior of the engine. Works on Honda Odyssey, Pilot, Ridgeline, Accord & Acura RDX/TLX. Running too rich - High negative fuel trim corrections can be caused by MAF sensor problems, high fuel pressure, leaking fuel pressure regulator diaphragm, faulty evaporative emissions components, leaking injectors, defective O2 sensors, exhaust leaks/pinholes before the O2 sensor, coolant temp sensor problems, and base engine issues such as low compression and incorrect camshaft timing. HP Tuners How-To's. Join the thousands of Powerstroke, Duramax, and Cummins diesel truck owners. here is the procedure I have been following when idle tuning an LS2 car with cam or whatever upgrades that warrant having to fix the idle. Another cause of high idle could be the air intake boot which delivers air into the intake system. Now tune the air/fuel screw to make the mixture leanest as possible. Watch a movie. This comes with an iron block and head engine to displace 390 cubic inches, with a compression ratio of 17. it seems to pull stronger when not depressing the accelerator at first gear at near idle speeds. Some tuners or users are scared of o2 feedback, because of the ability of the car to lean itself out. HP Tuners, the home of VCM Suite and the MPVI since 2003. max_cstate=1", because that´s need a lot of battery. Since the Cam install I have been tuning my car with HP tuners using the tuning school learn at home beginners course. Changing the fuel pressure on an EFI System is an effective method of affecting engine performance and making more power. HP Tuners for 2005-2015 tune with the hptuner and the truck felt like it ran rougher and went seriously pig rich and that's without FPR mod. Yeah, that hard line on the back is the supply line for the heater core. HP Tuners positively kicks ass! Its 2 credits per car at 50 bucks a credit. Then it's very rich and stumbles around 400-500rpm. Thanks to LS1 Edit software, Sam has access to around 4500 tables inside the factory PCM. How to use HPTuners. While the car was torn apart I also upgraded my HP Tuners to take my wideband input. Free Retunes. 00) for standard gasoline. EFI Idle Tuning Notes I finally achieved, what I consider, an excellent idling enginebut it wasn't easy. The LM-1 meter told us the engine was way rich at just off idle, so we first tried leaning out the idle-mixture screws, but it didn't help. Some causes are harmless, while others can. They offer the simplest, cheapest and most suitable induction system for the 'K' series engine. 1984-1994 Yamaha Outboard Service Manual/WorkShop Manual Application: 2 hp 1 cyl. ) Scan tool data can be saved in two ways. If you don't have a tachometer, try to set the speed so the saw will idle with the chain stopped. Now tune the air/fuel screw to make the mixture leanest as possible. 2015 Ram Performance that Stands Apart Whether you have a 2015-2016 3. Timing is a very useful tool for controlling your idle speed. of initial idle. It already had 60lbs injectors but the stock pulley. 103cc 2-stroke 1984 1994, 6 hp 2 cyl. Re-check idle quality and repeat as needed. 6) Turn the ignition off. Since the Cam install I have been tuning my car with HP tuners using the tuning school learn at home beginners course. This is my new interface and I LOVE being able to see my AFR as it lays out across my VE tables. Using the "Maths" section supplied by HP Tuners, you can see that I have created custom PIDs which record Short Term Fuel Trims for Bank 1 and another for Bank 2 - in relation to the calculated Pressure. I do know a tad about hp tuners as ive had it for a couple years now. 0 ish on the wideband even as I lean out the VE table 2001 Camaro Z28 maf deleted 92 m throttle body emissions deleted stock LS1. I don't have a wideband to see how actual rich it's getting but the injector pulse width is going up at the same time the computer is commanding the rich AFR, I can also feel the truck starting to idle real rough while this is happening. Gapping plugs will not fix your issues. This is what "tuner" from the racing fuel systems forum. HPTUNERS is most referred in describing how to do something and has the most screenshots. OBDII: Jet Dynamic Spectrum Tuner (DST) (Amazon usually has the best price), and ECMPro Scan + enhanced GM diagnostics; You begin with the base tuned file I will send which will be set to your setup's specs, which is for what you are paying: one base tune (like the Postal method). 8 should be used. Once the car is warm, between idle and 3,500 rpm, they are usually -4% vs -14%, but are never equal, although they do come close to each other a lot such as -7% vs -12%. Jump to content. Idle Tuning. We tweaked this a bit for when the engine warms up. The first time I ever heard of twin charging (using both a turbocharger and a supercharger on the same motor) was probably back in year 2000. One other note I would like to add is the new motors these days come with fuel mixture screws blocked off by a little brass plug and the motors leaned out so much that they don't run worth anything in the real world, after you get all the carbs clean remove the little brass plug on the side of each carb and adjust the mixture screws to get it to run better. ive just started this step and. It lays out information in a very easy to read display with all of the parameters that we need to look into. Life and Times Of the sloppy mechanics, our projects, videos, builds, and misc. How to Stage 1 kit a Harley-Davidson Sportster. It did throw a CEL with a code 1-1-3, so I suspect that my O2 sensor is bad and was causing the idle issue to begin with. Next is a cam swap, thinking green using the graf you posted. Hi Guys, I am far from a tuner however would like to know if a car has had 1000CC injectors installed, no other mods and a stock tune, what parameters would need to be changed for the car to be able to drive to a tuner?. to fix the idle airflow you will have to make sure the IAC effective area is all set right AND that your VE table is set where you want it and you have the fuel trims you desire, at idle. Now the timing going back helped that issue, but if you are tuning for HP, the tuning to 12 from 16 helped the bottom end. 7L Ram 1500, or a 2015 6. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you'll ever need for your modern OBDII vehicle. Engines with longer duration camshafts may not be able to maintain good combustion this lean. Without an equal 4 corner Idle cicuit, sometimes it is best to have the rear transistion slots just barely covered by the rear throttle plates. The factory programmed your late-model vehicle’s stock computer for bare bones performance, but HP Tuners unlocks the computer so you can tweak and tune for maximum performance. It must be remembered that carburetor jetting is determined by the throttle position, not engine speed. The idle transition may even require extensive recalibration of the idle restrictors - not an operation for the do-it-yourselfer. Instead, he opens 4 equal ones a lesser amount, (and avoids nozzle drip and fooling with bypass air. How to Adjust a Carburetor 4-Corner Idle System Read More. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. If you don't have a tachometer, try to set the speed so the saw will idle with the chain stopped. Track Addict can also stream live data to the HP Tuners Live Telemetry website where it can be viewed by. If not start there & come back to this when that's finished. EGO Sensor - Exhaust Gas Oxygen sensor, used to describe the sensor in the exhaust that measures the lean/rich state of the AFR. Tuners work best on the older model diesels. 5 (I will leave it there for now) and the idle and part throttle operation seems just like it was with the stock injectors. Thanks again, for the excellent service! Keep it up!. The LM-1 meter told us the engine was way rich at just off idle, so we first tried leaning out the idle-mixture screws, but it didn't help. Complete your project. 58 GPH) is about normal. Gen IV E38/E67 Idle control. My engine is a modified Chevy 350 with ported double hump heads, roller lifters and lots of more performance stuff. Use the Idle Adjuster to re-set the idle speed. In addition to the mods you mentioned I would make sure the carb has a hp needle/seat (at least. I just received my EFI-8 1200 hp unit and I noticed that my secondary throttle blades open a fraction later, and the secondaries also don't open 100%. Since the Cam install I have been tuning my car with HP tuners using the tuning school learn at home beginners course. So my mechanic messed around with the C&L MAF and it seemed to fix the richness. The engine will idle at about 13. Extreme part throttle lean out, Holley HP Greetings. HP Tuners for Dummies I want to make a data base available for people to read about regarding what everything means in Hp tuners while you are tuning. I used info I found over on the HP Tuner forums to tweak Park Idle Air Control as well as the VE table and spark advance table for the lower RPM range, and now I have no idle issues at all. of initial idle. You can be running Rich at idle and Lean on the main circuit and Vice VersaYou need to do a plug. I don't know how much is too much, but I just kept adding 1 to the row, and car idles NICELY now. They offer far better idle and progression than some other direct to head systems due to the very short distance between the throttle plate and the inlet port. Are these poor idle symptoms and rich AFR requirement caused by low compression? Is the camshaft too big for this combination to idle smooth at 650 RPM?. 87 Pickup 22r running rich, erratic idle, carb adj not effective. I don´t try with the "intel_idle. Some engines with hot cams will require an air/fuel ratio as rich as 12-12. BE CAREFUL NOT TO OVERTIGHTEN THE IDLE MIXTURE SCREWS AS THIS CAN DAMAGE THE NEEDLE TIP. I am hoping that this will be stickied. This is a discussion on a tuning guide i found based on hptuners within the Computer & Tuning forums, part of the LSx Technical Help Section category; PCM Tuning Process Flow 1. The LM-1 meter told us the engine was way rich at just off idle, so we first tried leaning out the idle-mixture screws, but it didn't help. They offer the simplest, cheapest and most suitable induction system for the 'K' series engine. Thumpr cam installed. Now the timing going back helped that issue, but if you are tuning for HP, the tuning to 12 from 16 helped the bottom end. HP Tuners, the home of VCM Suite and the MPVI since 2003. The first step in tuning your own Mustang with HP Tuners is to make sure you have downloaded and installed the latest beta release of the software. This comes with an iron block and head engine to displace 390 cubic inches, with a compression ratio of 17. Since the Cam install I have been tuning my car with HP tuners using the tuning school learn at home beginners course. It does in fact run rich so next up will be to take the Tundra maf hp tuner tuned, 650cc flow matched fuel injectors, Walbro 255 fuel pump. If you look at one of Gil's tunes he will have reset that table to somewhere around 1. Re-check idle quality and repeat as needed. HP Tuners How-To's. Rough, Unstable, or Incorrect Idle and Stalling Engine idle speed may vary in RPM. LS Big Cam Idle P2 If you're one of the lucky ones who experienced the first result, congrats, your work is just about finished. These parameters control the desired idle RPM and the behavior of the Idle Air Control (IAC) motor or Electronic Throttle Control (ETC) during idle conditions. Horsepower Tuners, Performance at Your Fingertips. 5mm wires, coil, billet distributor. Ok wanted to test this screen capture software and new mic, they will get better! But so yeah decided to make a how to tune idle speed on your Gm Gen lll LS series engine. HP Tuners for Dummies I want to make a data base available for people to read about regarding what everything means in Hp tuners while you are tuning. Ring Video Doorbell with HD Video, Motion Activated Alerts, Easy Installation - Satin Nickel. Compare TunerStudio Editions TunerStudio! TunerStudio brings a whole new level of refinement for tuning software. Both of mine, with aftermarket camshafts and higher idle speeds (~700 RPM) run between. com ban Watch Ariana Grande Nudes. 5-10 minute installation. 0-liter four-cylinder, creating an extremely rich idle and forcing us to idle in open loop. Even though it is straightforward, it may leave you feeling like you've spent a great deal of time standing on your head since the adjustments will require you to lean over the top of the motor for at least half the time it takes to. Then said it was lean, added fuel again and still at same no idle issue. I have an issue I have been hoping to resolve through searching and lurking, but to no avail. If not smooth then adjust idle about 15% higher than factory recommended stock setting. Idle Air/Fuel Ratio Tuning you can stand where the exhaust exits and see how rich it smells. Are these poor idle symptoms and rich AFR requirement caused by low compression? Is the camshaft too big for this combination to idle smooth at 650 RPM?. The smell seems to have gone. (Idle speed is pre-set at 1,000 rpm. to fix the idle airflow you will have to make sure the IAC effective area is all set right AND that your VE table is set where you want it and you have the fuel trims you desire, at idle. Only browse websites that do not require logging in. Gain 10-20% more miles per gallon with your diesel truck. This article explains the core functions of the ECM. Micro Center Web Store; Close Modal; You are currently browsing the products available on our web store. Running too rich - High negative fuel trim corrections can be caused by MAF sensor problems, high fuel pressure, leaking fuel pressure regulator diaphragm, faulty evaporative emissions components, leaking injectors, defective O2 sensors, exhaust leaks/pinholes before the O2 sensor, coolant temp sensor problems, and base engine issues such as low compression and incorrect camshaft timing. Commanded Rich AFR Sometimes the motor will stall. The Tune ECU program was not created by Rottweiler Performance nor can we nor AOMC offer much 18 Dez 2010 Chama-se TuneECU e é um software para reprogramação, diagnósticos e. 2015-2016 3. For mild cams, an idle ignition timing advance of approximately 16-18 degrees will do. Or does high positive fuel trim at idle mean vacuum leak even on a speed density engine and I should keep looking for one? Thanks for any input. HP tuners Cam Tuning. By working with the RPM and MAP bins, you should be able to work out a set of values that lets you run lean at cruise and decel [where the RPM is above idle, and MAP below idle], but rich when stalling [RPM below idle]. The JK was an evolutionary step in the Jeep design, and this design includes all the standards such as a separate body and frame, front and rear rigid live axles, a fold-flat windshield, and can be driven doorless. This screw leans or richens the fuel mixture for a smooth idle and on up to one quarter throttle. These parameters control the desired idle RPM and the behavior of the Idle Air Control (IAC) motor or Electronic Throttle Control (ETC) during idle conditions. A carburetor has an accelerator pump, idle, main jets, and in most cases a power system that is designed to supply the correct air/fuel mixture for the engine's demands. Dallas1215 I have a 2003 Ford Escape 3. But in some engines where Idle is too rich, then exposing the rear slots is a good way to lean it out a little, as long as the rears are not opened too much. This should give the injectors enough pressure for a good spray pattern and room for the pressure to rise under boost. IDLE / LIGHT CRUISE: 13. To get access to the beta you should email HP Tuners tech support email and they will add it to your customer area so that you can download it. Life and Times Of the sloppy mechanics, our projects, videos, builds, and misc. Your biggest problem is the compression. Gen III - Speed Density VE Table and MAF Tuning Instructions with a Wideband O2 Sensor Create by 69lt1bird - Jeff Anderson 1 These instructions are written for the beginner and intermediate user of HP Tuners. How to Adjust a Carburetor 4-Corner Idle System Read More. Some causes are harmless, while others can. After a few min the stumbling starts. Timing is a very useful tool for controlling your idle speed. Some tuners or users are scared of o2 feedback, because of the ability of the car to lean itself out. I have an issue I have been hoping to resolve through searching and lurking, but to no avail. How can you tell if an off-idle stumble is caused by a lean or a rich condition? A carb running rich, as well as a carb running lean, can cause an off-idle stumble or hesitation upon acceleration. It may also be true that the engine wants to idle rich of stoich. I do all my driving in town. In the native HP Tuners file format, or by exporting the data to a comma separated file. He said that the cold idle was an issue he flagged with the owner of the car and it was one of. Ok I have paid to have my car tuned and the tuner has done a nice job I just feel there is more and he thinks I am well wrong. 9L Dodge Cummins diesel is capable of producing tons of horsepower, ground pounding torque and remarkable fuel economy all at the same time. I've gotten it to fire up and idle until it's almost warm. fuel pressure is 32. Are these poor idle symptoms and rich AFR requirement caused by low compression? Is the camshaft too big for this combination to idle smooth at 650 RPM?. They offer far better idle and progression than some other direct to head systems due to the very short distance between the throttle plate and the inlet port. Ok so first off I have a 2003 VTX 1800. Dallas1215 I have a 2003 Ford Escape 3. I fixed my cold startup issue in HP Tuners, as well as a few others on here with the 03/04 PCMmaybe you should double check everything again, or may I suggest you take your car to a real tuner to do it for you. CARBURETOR SET UP AND LEAN BEST IDLE ADJUSTMENT. Maps are calibrated for your specific combination of motorcycle and performance parts. If idle RPM is modified up or d= own, the VCM Editor>Edit>Engine>Idle>Base Running Airflow>Idle Airflow vs. Re: Carb Tuning- whats first? June 19th, 2013, 10:51 AM If it idles ok (does't cough or die when you put it in gear, or goose it a little) then you probably don't need to worry about the idle. ECT table must be adjusted up or down also. of initial idle. Horsepower for the little 2. Idle Problems With Performance Camshaft I have read almost every article and threads on the Internet about this problem, but haven’t found a working solution for my setup. If not smooth then adjust idle about 15% higher than factory recommended stock setting. Please read this document carefully and use at own ri. I can tweak them exactly as I want. Micro Center Web Store; Close Modal; You are currently browsing the products available on our web store. Now enhancing these to new heights with a new feature rich VCM Editor and VCM Scanner, coupled together with the latest generation MPVI2, this is only tuning and diagnostic solution you'll ever need for your modern OBDII vehicle. While the car was torn apart I also upgraded my HP Tuners to take my wideband input. The number one cause for high idle is an imbalance in air pressure. Holley's new Ultra HP carburetors have over 30 changes from the original 4150 HP line, and are sold as ready to race out of the box. A choke plate closes-off the air going into the carb which makes the fuel mixture really rich so it can run. does not do it all the time but runs great while warming up for about 5 to 10 minutes then goes into a rich idle ,but does come out of it some times going down the road at low speeds it acts like it hanging there until you step on fuel pop out of throttle body and goes lots of times will come into a. Thanks to LS1 Edit software, Sam has access to around 4500 tables inside the factory PCM. I can tweak them exactly as I want. I just finished rebuilding my 947, and when I first started it up, the idle speed was set to about 3200. A rich fuel mixture can cause an engine to "load up" at idle, foul the spark plugs, and also lack power or run sluggish. 2) Idle is sometimes fine and other times stalls out. Note that this is a 20% improvement over another proven form of fuel injection. 0-liter four-cylinder, creating an extremely rich idle and forcing us to idle in open loop. The carb is about 20 plus years old but runs fine once on the road. The STFT stays close to zero. Compare TunerStudio Editions TunerStudio! TunerStudio brings a whole new level of refinement for tuning software. 7:1 AFR and divide by 1. Talking about "putting the wrong tune in" or whatever and all of this talk about blowing up your Titan or it going in limp mode.