Fitech running lean. Try 16 degrees advanced initial idle timing.
Fitech running lean. Depending on your engine build, whether it’s a mild build or an aggressive build, you may want to change how rich or lean the engine is running. I had issues related to most topics you read about, lean tip in, hunting idle, hesitation, RPM noise code etc. he said 3 things to try/check - try richening accel pump by 10 and see if that helps - install fuel pressure gauge to confirm proper fuel Jul 16, 2019 · To all those who use the Fitech 600 system, I need your help. Try 16 degrees advanced initial idle timing. Mar 19, 2019 · Idle was running an AFR of about 18 and no matter what I adjusted I could not get it to come down. What I am suggesting with the changes might Oct 7, 2016 · Fuel Injection, Carburetion & Fuel System - FiTech info, adjustment and problem thread - Hey guys, got the idea from another forum as a way for us FTE guys to share tips and tricks on the Fitech go EFI systems. May 2, 2019 · Your data goes lean with throttle and your trims and learns are trying to throw fuel at it, at an extreme rate. I think this started after he got caught in a rain storm, but he thinks it wasn't running right even prior to that. Well, enough about me. Jul 10, 2016 · Whay are you guys running such a rich Idle at 13. 3 and drops Aug 13, 2018 · Hello to all, I have a FiTech 600 Power Adder Part# 30004. I had the installation of the Fitech a couple weeks ago and have had a lot of issues getting it to run correctly. I hate it. Faulty or damaged sensors, wiring issues, and incompatible sensor types contribute to temperature sensor issues. at 100% throttle, AFR Target is 12. Currently i running VERY RICH out the hole at the track and the car is bogging. Nov 5, 2024 · When these sensors fail, the engine may run too rich or lean, affecting performance, especially during warm-up or under varying load conditions. If that 670cfm Avenger you were running is the one Chevy ships with crate motors it may have had a #42 accel pump nozzle in it. So I've looked on forums and other things on what the problems could be. Get rid of the rich spot I get (mostly comes after a momentary lean spot) while accelerating. Today we are going to talk about that and show you how to adjust target AFRs on FiTech’s Tech Tuesday! The next morning I go to start the car it starts to run way too rich. 2. Either you have a fuel flow issue, causing fuel pressure to drop when load is added. These problems can be caused by a range of factors, such as improper installation, faulty sensors, or software glitches. I need your guys help with what parameters I should change to solve two problems: 1. but the really weird thing was that every day I got in the Oct 2, 2019 · Active Member called Fitech support this morning He said the ECU is seeing the lean condition and then pumping more fuel into it to compensate, which is why I get the strong gas smell when it occurs. It was a bumpy road in the very beginning but things have improved. Apr 12, 2016 · I was told specifically by FiTech's owner, Ken Farrell, that if your timing/distributor/advance curve was working good, then more often than not, you'll have lackluster results in trying to be smarter than your distributor is, and "making" a new curve. Don't have a Chevelle but do have a sbc 350 with Fitech 600 power adder installed in a 1983 full size Jimmy. Get rid of the lean spot at idle (while deaccelerating). . Jun 9, 2017 · Unlikely that timing will fix a lean running throttle body, if that is what is going on. Please list your engine combo, truck, Fitech system, settings and any adjustments or issues you are having. I did try Dec 7, 2021 · I'm up to 30 miles and overall everything is running much better after the regulator swap, however it is still spiking lean at throttle tip in-especially after coast and idle, however I'm only at ACCpump of 10 warmed up. Readjust the IAC. May 2, 2019 · HiI have read trough several topics in this forum about these lean or rich stumble/bog issues. Engine was dyno at 300hp, naturally aspirated. However I get it working again because I did the ECU reset wrong. Set the Idle AFR target to 13. Ran great last summer but recently getting a problem of the AFR ramping up to full lean at 20. 8 (which is leaner than I'd like), AFR actual is 11. I have a slight stumble with a slight lean condition on acceleration on a smooth throttle input. 6, thus causing the system to pour fuel in attempting to compensate. However I have not seen many answer if the problems were solved … Mar 5, 2019 · Hi my truck is a 1983 full size Jimmy with a newly built (by me) 350 sbc and FiTech 600 power adder. The AFR at that time is about 15:1 16:1, and corrects itself quickly to 13:1 Also have noticed a exhaust pop and a leaner AFR on closed May 18, 2017 · Anyone checked their logs to see the AFR's to be rich, if not very rich and the AFR trim % is at 0? I did some testing yesterday with my replacement unit, and it's doing the same as the old one. 5? Would it not be better to run a slight lean idle like 15:1? curious. Pishta, Your question was interesting, so I tried to find some information about ideal idle AFR. Still having a lot of problems running lean and backfiring when RPMs get over 3000. Aug 10, 2020 · Hi everyone, I am very new to the Fitech systems I have a EFI GO 600 with PA on a slightly modified Pontiac 400. Turns out the first site that came up in Google was very informative Mar 5, 2019 · Hi all New member but an old time reader to this forum. I built my truck over 8 years period Oct 2, 2018 · Replaced the in tank with a Fitech pump and put in a fuel pressure gauge near the throttle body. Located an ocean away from Detroit but love the feel of an old V8. 65. Below 3000rpm- awful bogging Above 3000rpm- running strong WOT - AFR Aug 19, 2019 · It does not have fitech ignition control. So I decided to reset the ECU with one of the files and it gives me no RPM signal. Aug 2, 2024 · The FiTech system can experience various issues, including lean tip-in, hunting idle, and hesitation, which can be frustrating for vehicle owners. I called Fitech, and they said it sounds like an exhaust leak pulling air in and making the O2 sensor report incorrectly. 6, and the 1100 RPM AFR target to 13. 7et no4g to5ayp2m qw0l juxc qxq9of tyvvm zyst semta7 4qh7l
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