cohophysh Posted July 27, 2012 Share Posted July 27, 2012 90 leg 2.2 5 speed. Car won't idle, was running fine, pulled up to a stop light and it dies, restarted just fine but I had to sit on the throttle to keep it idling...where do I start? MAS, TPS, IACV? other parts to check?? Thanks Link to comment Share on other sites More sharing options...
Fairtax4me Posted July 27, 2012 Share Posted July 27, 2012 Intake tube and PCV/breather hoses. All attached correctly and none broken/cracked. Vacuum hoses. Idle valve stuck. EGR valve stuck open. Dunno if a 90 would have EGR. Link to comment Share on other sites More sharing options...
mikaleda Posted July 27, 2012 Share Posted July 27, 2012 (edited) no iacv or egr on a 90 2.2 i have two :-p, any trouble codes? if not i would check the maf sensor first and see what happens. another thing to consider is an injector i just did this to one of mine a while back. Edited July 27, 2012 by mikaleda Link to comment Share on other sites More sharing options...
ivans imports Posted July 27, 2012 Share Posted July 27, 2012 90 idle motors likes to gum up just had one stalls when going round town ok on hyway idle motor was pluged with oil and carbon and struggling to move Link to comment Share on other sites More sharing options...
cohophysh Posted July 27, 2012 Author Share Posted July 27, 2012 no EGR on 90 but I am pretty sure it has an IAVC, I will check hoses Link to comment Share on other sites More sharing options...
mikaleda Posted July 27, 2012 Share Posted July 27, 2012 (edited) my step dads 97 2.2 has an iacv neither of my 90 2.2s have one, that i know of but they are kind of hard to miss. Edited July 27, 2012 by mikaleda Link to comment Share on other sites More sharing options...
cohophysh Posted July 27, 2012 Author Share Posted July 27, 2012 I probably shouldn't have but I adjusted the idle screw, at least that should get me safely home...probably the TPS needs to be replaced Link to comment Share on other sites More sharing options...
mikaleda Posted July 28, 2012 Share Posted July 28, 2012 (edited) tps is around ten bucks at junkyard last time i was there, don't go to auto parts store an oem replacement tps is around $300. i put a tps on one of my 90's out of the junk yard and it worked just fine. also before you put a tps in are you getting any codes? you can check them yourself on a 90 without a scan tool its obd1. Edited July 28, 2012 by mikaleda Link to comment Share on other sites More sharing options...
Fairtax4me Posted July 29, 2012 Share Posted July 29, 2012 I probably shouldn't have but I adjusted the idle screw, at least that should get me safely home...probably the TPS needs to be replaced No you shouldn't have. Now the ECU thinks your foot is on the pedal all the time. But hopefully you didn't adjust it far and you can set it right back where it was. You'll want to. TPS is expensive because they don't often fail, and when they do you can get them cheap at a junkyard. But it has to be adjusted properly so the ECU knows when the throttle is closed. Link to comment Share on other sites More sharing options...
cohophysh Posted July 29, 2012 Author Share Posted July 29, 2012 yea, I only tweeked it a little, and marked it so I can reset it. Link to comment Share on other sites More sharing options...
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