After cleaning throttle body and IACV this weekend I expected no more warm-up stalls. I was wrong. After cleaning yestderday, the old gal started great, idled strong. As I drove around the block, after about 1 minute -- as soon as the temp gauge lifted off of 'cold', it happened. Rpm's dropped and lifted and dropped again. I had to put it in nuetral and rev to keep from stalling. This lasted about 20 seconds, and then it was fine. Once it's past that warm-up spot it runs great.
This mornng I let it warm up in the driveway. After a minute it stalled, started right back up, and was fine after that.

Yesterday's problem did cause check engine light to go on. I have not checked code yet, but will probably bring to dealer (since he has tried for last couple of weeks to diagnose problem). Does the code stay in system if I check it myself?

Does this soud familiar to anyone?

 

Check the code yourself. Your probably going to get either a MAF sensor code or the engine temperature sensor code. My guess is the engine coolant temp sensor is bad, being that you have a temperature related problem.

 

Thanks,
The engine coolant temp makes sense. I will try to check the code.

 

Dont post about a problem that lights up the CEL without checking the code first.

 

Sorry,
when I check the code, does it remain in the system? I was worried I'd loose it.

 

Check it yourself and it'll give you the codes. If you want the codes to stay, don't reset the ECU after you're done. If you want to clear the codes, reset the ECU