1G Rough idle and stall after engine is warm

[94gsxawd]

I am trying to diagnose what is going on with my 94 eclipse gsx. It cold starts and idles perfect but after the engine is warm Im having an odd problem. It will start at low rpms but idle very low and rough and stall if I dont stay on the gas. I tried a new IAC valve and cleaned the old one and neither have helped. Any help is greatly appreciated! Thanks

 

[lasershark]

if the resistance tested good on all the coils it could be a problem with the plunger being frozen, I had a few all tested good but only one turned out to actually work, also check for vacuum leaks, maybe do a BLT (boost leak test) always good to do if it's a "new to you car"

any check engine lights, does it always do this when its warm? or every now and again? Previous owner may have messed with the biss screw improperly just throwing out ideas on where I would start

 

[94gsxawd]

It has been an intermittent problem. Today was the first time its done it in awhile but there is no CEL on. Im starting to suspect a vacuum leak. I had it in the shop a month ago and its ran great till recently.

 

[lasershark]

maybe check that your tps is adjusted properly and within spec

 

[94gsxawd]

I took a look at my tps and found a tiny spot with bare wire showing. I wonder if thats whats been causing this. Thanks for the info

 

[lasershark]

here is a link that will help you to check if its adjusted properly TPS Adjustment

you only have to take off the throttle body if you're actually adjusting it, you don't have to take it off if your just checking it

 

[Darksun280]

If that doesn't work check your Tstat. If it's bad it won't open and keep your car thinking its in and out of cold start