My 89 fuel injected 323 will start and run off the choke I think (idles really high, white exhaust, no coolant smell) , but as soon as it warms up..as in runs for 5 minutes or so, it starts to die. I can keep it going by keeping it throttled, but it will die instead of idleing. After it dies it will not even try to start, no sputter or anything when i turn it over, for at least a day, i guess while it is still warm. I checked the error code where you ground this green wire by the firewall and the check engine light flashes, and nothing shows up. I am guessing i ruined a sensor or something because i was cold starting it around 30 below zero last winter around the time it stopped working. Does anyone have any ideas what to check before i start buying random sensors? I am pretty stupid when it comes to fuel injection so any suggestions would help.

 

P.S. I put a multimeter on 2 wires that are hanging by my fuel injection rail, I beleive they are test wires for my thermosensor, and they gave a reading of 8 MegaOhms, so if i am right about what the wires are then my thermosensor must be bad. What i can't figure out is where it is, i read under the intake manifold, but i didn't find anything back there, is the thermosensor maybe part of my BAC valve, or do I need to look harder around my Intake?