AEM FIC tuning tips

[yariSB86]

So after being on duty all weekend, I drove home with the FIC bypass harness connected. The car ran like stock even in boost. Wasn't lean or rich at WOT.

[TOLMACH]

Originally Posted by yariSB86

So after being on duty all weekend, I drove home with the FIC bypass harness connected. The car ran like stock even in boost. Wasn't lean or rich at WOT.

interesting boost present but still not lean?

[yariSB86]

Originally Posted by TOLMACH

interesting boost present but still not lean?

Yes, boost present and not lean. was running slightly rich actually, around mid ~13s


Originally Posted by ilikerice View Post
I could have sworn there was a thread that did some investigation with the 06-08 ecu will throw that code when running the FIC. That person used a 09-11 ecu and it fixed the problem. I can't remeber where I read that
That thread is on MicroImage the op has not been on to let us know if it worked.
He has an 07hb and having issues with the cps code so he bought an 08+ ECU to see if that would fix it. There are a lot of cases of this issue with earlier scion models.



@kou - I was only seeing that code, p0135 i believe, while the fic was connected.

The only code ive seen since it has been bypassed is p0172 (system too RICH). And that only came up when i was boosting up to hwy speeds from 2nd-4th gears.