I've got a 92 EG hatch running a B16A2. I rebuilt the head and the idle started surging. The CEL says its my IACV so i replaced it several times now, with no luck. Theres a guy that tunes cars and I've been talking to him, said he can bypass the IACV on the ECU, but he usually justs fixes it. I just wanted to know if it was truly possible to do that and have my car working normal again? He said he was going to charge me 150$.

 

vacuum leak?

 

Yes it is possible to disable a lot of sensors. if you already replaced it and it still doing it maybe its something else? did you reset the ecu?

 

probably a vacuum leak.

 

I did reset the ecu and battery. And I do believe it is a vacuum leak, but can tuning the ecu and the car by pass it?

 

why bypass the problem instead of fixing it check for vacuum leaks from around the intake manifold

 

doubt it

 

There is a leak on my mani.

 

fix the leak then