just the other day i was driving to the shop and nothing happened. but when i started the car at the shop the car idle really weird, it was like fluctuating between 1 - 1.5k even though the engine at the norm temperature and the cel light went on. i needed to get home bad so i drove it anyway and after about 5 min the cell light went off and everything was back to normal. can anyone tell wat the f*ck is going on...
sorry for the long post.
thanks

 

the code should still be there....even if the cel went off...... check the code...... also not having enough coolant will sometimes make the revs fluctuate like that..... if not that then it could be the idle air control valve or throttle position sensor... just some vague suggestions of things to check.... hope its something simple... good luck