Hi all . Since i swap a b18b in my 1995 civic , i always have idle problem . I correct almost all the problem when i change my ecu . Now it idle fine when the car is hot , 750 rpm and no problem at all.

After i change my ecu for a p75 , the cold idle start at like 1300 rpm and raise up to 2400 ! After maybe 30 seconds its start bouncing 1500-2000 1500-2000 . So i just remove the Fast Idle Valve , clean it and screw it like it should be .

This morning was cold , like -5 celcius outside . I start my car and the idle was at only 900 rpm and the car sound strange and its shaking a little bit . I just give some gaz for 15-20 seconds and after this my car idle find , a little bit too low ( 1500 rpm ) but fine .

My iacv work fine and its clean , fast idle valve is clean too and adjust correctly . So i really dont know what going on now , do you have any suggestion ?
A friend told me maybe i have some dirty injector and that not help .
So if you have any idea , lets go lol

Thanks

 

anyone ????