I finished my friends jdm b16 into his 96 civic and the car idles or bounces around from 1000-2000 rpms once started. Its running a jdm p30 ecu with conversion harness. I checked iacv, tps sensor map sensor and cant figure out why the car still idles like it does. It throws no codes so im stumped? Can anyone help me out here?

 

vacuum leak? bust out the carb cleaner and start spraying

 

yea i took off all the vacuum lines and plugged them but it still does it....i think maybe the tb gasket is shot because when i plugged the idle air control valve with my finger it still ran?

 

same thing is happening to me, it might be the gasket for the idle air control valve, do u have both bolts in the sensor??

 

yea i can check that and yes i have both bolts in

 

check the timing, if timing is on, try adjusting the screw on the tb

 

ahh did both alrady idk whats wrong

 

changed the tb gasket and still has a bouncy idle what could be the problem? when i turn the fast idle screw in and block the iacv with my finger it still runs? also when i disconnect the tps sensor whens it running it idle high then i have it set to .45 v at closed throttle and 4.5 at wot?

 

any suggestions?