ECU/ Air to Fuel Ratio reset - Toyota Celica Forum
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post #1 of 107 (permalink) Old 12-30-2008, 04:32 PM Thread Starter
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YES IT WORKS DO IT DO IT


Resetting your Air/Fuel Mixture Ratio
Original Author: mkbak Approximate Time: 10-15 minutes Required Tools: Needlenose pliers If you've noticed lately that your car has been running awkward or idling at very low rpms or even idling roughly, then your ECU may need to be reset. It is also a good idea to reset your ECU if you've added any performance mods like a header, intake, exhaust, etc. Doing this will let you take full advantage of your mods and reset your air/fuel mixture ratio so that you can get better performance.

Here's how to reset your ECU. First, start your car and let it warm up. When it's reached it normal operating temperature, turn the car off. Then, pop the hood and remove the relay fuse box cover and remove the following fuses: the Hazard fuse, the EFI fuse, and the ECU fuse. Take them out and leave them sit out for 1 minute. Then when the minute is up, put the fuses back in and start up your car. At this time the ECU is being reset so you can take advantage of your mods and get better gas mileage. When you start it up, let it run for exactly 10 minutes, then turn your car off. then start it again and you may notice your car idles better. From that point on you may have better gas mileage and your mods will be put to use.

Please note that this may not solve any problems, but it cannot hurt.
http://www.6gc.net/howto/reset_your_air_fuel_ratio


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post #2 of 107 (permalink) Old 12-30-2008, 04:32 PM Thread Starter
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it works oh it works, doing this made my car come alive. no joke, every modded celica owner should do this.

i idled my car until operating temp, then shut it off and pulled the efi fuse, efi main realy and the hazard fuse for 1 min, then reinstalled and idled my car for 10 min, then shut it down and started it up and took it for a drive and holy cow does it drive.


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post #3 of 107 (permalink) Old 12-31-2008, 02:39 AM
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I cant find my friggin ecu one either im retarded or it's not labled ECU

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post #4 of 107 (permalink) Old 12-31-2008, 03:25 AM
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EFI main is what your looking for.


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post #5 of 107 (permalink) Old 12-31-2008, 11:41 AM Thread Starter
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i idled my car until operating temp, then shut it off and pulled the efi fuse, efi main realy and the hazard fuse for 1 min, then reinstalled and idled my car for 10 min, then shut it down and started it up and took it for a drive and holy cow does it drive.



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post #6 of 107 (permalink) Old 12-31-2008, 01:29 PM
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#### I did it too and **** it's a huge difference, now I'm happy with my car

1990 Toyota Celica ST


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post #7 of 107 (permalink) Old 12-31-2008, 03:02 PM Thread Starter
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i think i found a diamond in the ruff


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post #8 of 107 (permalink) Old 12-31-2008, 03:03 PM Thread Starter
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what do you guys think, sticky?


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post #9 of 107 (permalink) Old 12-31-2008, 03:47 PM
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I say sticky it

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post #10 of 107 (permalink) Old 12-31-2008, 05:05 PM
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Will this work on a 3s-gte?


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<span style="font-family:Impact">91 GT-S+3SGTE Swap+MSR RIMS+Blitz Down pipe+Full 3" Exhaust w/ Magnaflow muffler+GT-FOUR restored/repainted hood+HKS intake+Custom MR2 trimmed gauge pod w/ Glow Shift Boost and Air/Fuel+255 LPH Fuel pump+ACT flywheel and pressure plate+ AC delete + Cruise Control Delete + Stripped out rear seats back with fake floor and custom sound system+ Biltz BOV
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