Quick question on warm up

[joeym4130]

Quick question, if anyone has an answer....
When i start the car cold, it seems to idle ok, high like supposed to, and steady. As the T-stat opens up and the temp gauge heads up, once it gets relatively close to operating temp the car starts to miss a bit at idle and runs kinda rich. Any things to check on what could cause this?? I believe my o2 is ok, I'm getting good readings at WOT and such? not sure what to look for. thanks guys

edit: oh and MAF may be bad, but i dont know when the car uses it for readings or if it does at all at idle. Im gonna change it out soon to check for sure, but just a thought.

 

[joeym4130]

thinking again...maybe coolant temp sensor? I have never checked that. And i believe the car is supposed to run richer when cold, which would explain why when it warms up it smells rich.. oh i dont know, but i'll check it :laugh:

 

[joeym4130]

no advice??
i didnt check the coolant temp yet, cause my friend pointed out i'd get a CEL if it was bad.