whts up ht!

its current running obd2a vtec engine harness on 94 obd1 gsr

(CEL went on for IAC and secondary O2 sensor heater)

so it was running up to proper temp. fan was not on when IAC behind IM was unplugged
because when i put IAC on, ITs will idle at 3.5 to 4k while its unplugged..

its idle 1.2 to 1.5k (Neutral Positioned)
did clean IACV inside gasket, and FITV too..so wondering Why it's came higher idle again with unplugged IAC?? do i need to bleed the coolant??

any suggestions?

 

What ECU are you running?

 

USDM P72 OBDII

 

or best way is to use OBDI p72 w/ jumper conv.?

IAC has plugged and still idling between 4 to 4.5k at cold start...same thing when its UNplugged

MAP and TPS is good, could be my PCV valve or vacuum leak??

 

maybe this will work to adjust the idle speed screw?

http://i639.photobucket.com/albums/u...cture_4661.jpg