I did a jdm B16a swap into my buddy's 91 CRX SI, it idles super low, like 200rpm and when you rev it up its good, but then when you let off it drops right low or stalls out, drivin it it goes good, it just idles like crap, i used his engine harness and added the pins to it for vtec,o2 and knocksensor
I took off and cleaned the IACV, and switch to his old one
cleaned all inside the IM with TB cleaner
checked the TPS, and tried a different one
changed the coolant sensor
changed the sparkplug wires,and spark plugs
changed tha map sensor
unbolted the cat to see if it was clogged
put the old ecu in
tried turning the idle up, but has no huge effect
still does it
after changing all that it would idle decently sometimes until you rev it and let it drop back down and almost stall, and then it would sometimes go back to idling really low
It has nice crisp throttle response, no hesitation, revs through the rpms nice and good, but bad fuel mileage .....its only at idle thats being the big problem ...If it was my car i would just drive it around for a week to see if it clears up but i guess its to hard for him to hold the rpms up a bit
who knows how long the motor sat before, it was dirty as hell in the IM
He got a spare distributor from his buddy to try and see if that makes a differance?
other than that i'm running out of ideas
I took off and cleaned the IACV, and switch to his old one
cleaned all inside the IM with TB cleaner
checked the TPS, and tried a different one
changed the coolant sensor
changed the sparkplug wires,and spark plugs
changed tha map sensor
unbolted the cat to see if it was clogged
put the old ecu in
tried turning the idle up, but has no huge effect
still does it
after changing all that it would idle decently sometimes until you rev it and let it drop back down and almost stall, and then it would sometimes go back to idling really low
It has nice crisp throttle response, no hesitation, revs through the rpms nice and good, but bad fuel mileage .....its only at idle thats being the big problem ...If it was my car i would just drive it around for a week to see if it clears up but i guess its to hard for him to hold the rpms up a bit
who knows how long the motor sat before, it was dirty as hell in the IM
He got a spare distributor from his buddy to try and see if that makes a differance?
other than that i'm running out of ideas
