Fitech backfires at idle
WebSep 17, 2016 · Not sure if any of this will be useful to anyone, but this is what I put the FiTech EFI on, and it worked right out of the box with only a little bit of richening up off idle. Cheap 290HP GM 350 4-bolt two piece rear seal crate motor Little baby flat tappet cam .450 .460 lift, 222, 114 LCL ProMaxx 72cc chamber, 185cc intake runner aluminum heads WebMay 17, 2016 · Simply shut the vehicle off and turn the idle adjustment screw in about a half turn to start with, then turn the key on and check TPS and make sure it reads zero. Once thats done start the vehicle and wait for the IAC steps to zero, after they go to zero slowly turn the adjustment screw counter-clockwise until the number reads between 3-10 ...
Fitech backfires at idle
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WebNov 19, 2011 · You should have around 20 Hg at idle. P0453 pops during the following: The PCM monitors the EVAP control system FTP (fuel tank pressure) sensor input signal to the PCM. The test fails when the signal average jumps above a minimum allowable calibrated parameter. The sensor is located on top of the fuel tank. WebMar 20, 2024 · When I hit the throttle harder the AFR jumps to 20 then back to 12 with a lot of backfiring. I adjusted the fast accel in increments of 10 both ways to the max, and … FiTech EFI Tuning Forum. New to FiTechAnswers to help you understand … FiTech EFI Tuning Forum. New to FiTechAnswers to help you understand … FiTech EFI Tuning Forum. Menu. Forum Navigation. Forum Members Activity …
Webtemperature turn ON Idle Set Mode. This locks the ECU in idle. On the handheld go back to the Main Menu and enter into Dashboard. Find IAC Steps. This number needs to be within 3 -10 at warm idle. If the number reads zero then slowly turn the screw OUT (counter clockwise) until the IAC Steps reads between 3-10. WebFeb 20, 2024 · Low fuel pressure in the fuel system will cause an off-balance air/fuel mixture and that, in turn, causes weak combustion. This can be felt as misfires on acceleration or even at idle. Fortunately, the fuel system in a car requires only minor tweaks. Sometimes the problem is minor, and at times, it can be huge. 7. Low Performance
WebMay 9, 2016 · Once I got the timing to match the handheld, I reset the learn and drove it for about a half hour. I must say that the FiTech NEEDS an adjustable rotor! So far the idle has smoothed out nicely, the random misses are almost non existant, and the backfire on decel is almost gone. Feels like the power curve is where it should be now. WebMar 1, 2024 · I fitted a wire to earth the throttle body, replaced spark plugs and have fitted a temporary splice into the white direct to the battery. Turned off the prime shot also. It …
Webtemperature turn ON Idle Set Mode. This locks the ECU in idle. On the handheld go back to the Main Menu and enter into Dashboard. Find IAC Steps. This number needs to be …
WebJul 25, 2024 · Then set idle O2 a bit rich, maybe 13.5:1. Then manually adjust the throttle blades so the IAC count is about 2-8. Save settings. I think the FiTech/engine needs to … phoodle hint september 24WebJul 20, 2024 · 07-21-2024, 10:31 PM. The firing order for a small block chevy is 1-8-4-3-6-5-7-2. The plug wires are installed in a clockwise order on the distributor, with the #1 being at the rotors tip position. When the timing marks are at 12 degrees BTDC. The initial timing is set at 12 degrees Before Top Dead Center. how does a crystal set workWebJul 1, 2024 · if you back fired you may have blown out the back of the blower bas gasket known problem with super chargers I bought 10 of them when I installed my 871 causes … how does a crystal growWebDec 12, 2024 · Ignition timing is even more important with EFI due to the precision that EFI offers for fuel control. – Ken Farrell, FiTech. FiTech EFI systems attempt to be as accommodating as possible for low-vacuum engines. We do have engines running with as little as five-inches of vacuum at idle, although some additional adjusting of the software … how does a crystal workWebFuel Commander Installation and adjustment 7 Topics · 73 Posts. FCC2 and pwm setting. 3 years ago · VintageSpeed2. how does a cstr workWeb1 day ago · Fitech is batch fire not sequential. By moving fuel injectors down to the end castings helps with cold start, idle, and acceleration. ... (would kill the ignition randomly when just cruising. engine would sometimes kick back on with a huge backfire and fitech would go haywire! removed the safeguard and all is good). ... I had alot of issues ... phoodle hint september 2WebJul 25, 2024 · Then set idle O2 a bit rich, maybe 13.5:1. Then manually adjust the throttle blades so the IAC count is about 2-8. Save settings. I think the FiTech/engine needs to be turned off and re-started between adjustments/setting changes to re-calibrate the TPS position and maybe update other software changes? how does a csrf token work