Bad Idle Etc Help

[carpcrew]

hi i have a 94 jdm st202 s3ge and im having a idle problem, if i tell you what ive done to try and combat problem ie- ecu reset a few times, took throttle body off and icv and cleaned them up, checked for vac leaks. not sure were to go next, car starts fine from cold but as soon as it reaches correct temp the revs drop down to a point were its nearly stalling, and it seems to be still on choke, and when driving it hesitates, if i pull off icv connector off revs rise so i assume its working, ive tried also the throttle position sensor by adjusting it, so i dont know what to try next, any ideas would be great, thanks.

[paulgtt]

Mine had a similar problem when it was cold, kept trying to cut out with the revs dropping.

I replaced the leads, plugs, rotor arm and dizzy cap, and that solved it and the missfire at full boost aswell ;)

[Jamesbelfast]

hi i have a 94 jdm st202 s3ge and im having a idle problem, if i tell you what ive done to try and combat problem ie- ecu reset a few times, took throttle body off and icv and cleaned them up, checked for vac leaks. not sure were to go next, car starts fine from cold but as soon as it reaches correct temp the revs drop down to a point were its nearly stalling, and it seems to be still on choke, and when driving it hesitates, if i pull off icv connector off revs rise so i assume its working, ive tried also the throttle position sensor by adjusting it, so i dont know what to try next, any ideas would be great, thanks.

A duff engine coolant sensor or its electrical connections could cause such problems whereby the ECU thinks the engine is always cold.:)