alright, i have a 90' Integra w/ a B16 and for the last 2 monthes or so i have had the idle bounce 2000-3000 up and down, well i checked the IACV and The TPS and nothing worked, checked for vacum leaks and still nothing, my friend has a Prospeed chipped PR3 and we put it in and my car ran perfect, no check engine light, no messed up idle and i was throwing no codes(i usually throw knock and O2) , well i went to get my ECU chipped w/ the same program and now in the meantime im running the CRX HF ECU (5500 RPM rev Limiter, OH YEAH!!!) and it does the same thing but instead of 2000-3000 it goes 1000-1500! but on this ECU I throw no codes????????
what the hell is going on????
any help is greatly appreciated!!
Thank You


Modified by Gen2B16 at 3:46 PM 1/20/2004

 

you can use an ecu that is not made for that engine. if you do you will throw codes and all kinds of **** can happen all day long. make sure you have an ecu for a b16 engine and nothing else.

 

change your throttle body....

 

Change the tps. Do not need to do wgole throttle body. If you are rally pissed off with your car i'll give you 500 bucks for it. Good luck!!!

 

thanks but ill pass, ill keep my car, thanks for the input, when the idle was really bad i had the DA6 PR3 B16 ECU in so its not the wrong one. Im going to get a new TPS and IACV today along with a new TB gasket!
thanks

 

re connected O2 Sensor, bouncy idle is gone. now it just sticks at like 2500rpm
WTF is up with my car
could my O2 be bad????
BTW on PR3 Ecu i throw knock and VTEC oil pressure switch.
thanks

 

I told ya to change the throttle body...On some throottle bodies theres a valve on it that allows coolant to run through it to keep the throttle body cool. i think the valve is stuck open and therefore your motor keeps thinking that the car is not warmed up yet...Think about it...when you start your car early in the moring the idle stays up high..when it gets warm idle goes down....I had that problem before and change out my throttle body and the problem went away.....try it maybe it'll work for you too...

 

thanks man, ill try that!