When you turn on the key, then press the brake twenty times, in very fast presses, what gets reset when the oil gauge goes to the middle and back down?

I have been told this resets the fuel injection timing/crank position sensor, is this true?

Why would I need to do this for better idle?

Why does my long term trims raise by 3 when I do this?


:confused:

I'm pretty sure the fuel trims get reset so that's why LTFT is off by 3.

here's more details on clearing it: http://www.rx8club.com/showpost.php?p=349432&postcount=3

I'm pretty sure the fuel trims get reset so that's why LTFT is off by 3.

here's more details on clearing it: http://www.rx8club.com/showpost.php?p=349432&postcount=3

No, I have tested the "Press the Odometer button" reset, it does not reset the Long Term Trims, at least from the Data logs showing LTTs.

here's more details on clearing it: http://www.rx8club.com/showpost.php?p=349432&postcount=3

The procedure that MM mentioned with holding the odometer is incorrect.
This will not reset anything... that menu is used to test inputs/outputs.
I talk about that in this thread:
http://www.rx8club.com/showthread.php?t=155947

I suggest reading this for the accurate way to clear the PCM and to understand what you're clearing:
http://www.rx8club.com/showthread.php?t=169443

damn it, I gotta stop quoting such old posts.

thanks for the correction Jon.

^wow jedi got corrected that's a first! haha

I was told pulling the room fuse will reset both the LTFT and the STFT...and that it will take a few drive cycles for the PCM to relearn the trim settings.

are any of these necessary or does the ecu learn these over time anyway

ECU will re-learn over time.

The procedure that MM mentioned with holding the odometer is incorrect.
This will not reset anything... that menu is used to test inputs/outputs.
I talk about that in this thread:
http://www.rx8club.com/showthread.php?t=155947

I suggest reading this for the accurate way to clear the PCM and to understand what you're clearing:
http://www.rx8club.com/showthread.php?t=169443

all the rules changed with the r flash..

beers :beer:

all the rules changed with the r flash..

beers :beer:

How so?

^+1.

How so?

fuel trims dont clear with the brake tap, they did before the r flash...

battery pull or fuse pull.

beers :beer:

Man... I love dat beer cup holder.

Wat da Man said room fuse.. :beer: :beer05: