first, need the code.

check the coolant level as it directly effects the idle condition.

it could be a vacuum leak, idle air control and these had issues with egr valves not seating

Roy

Answered by ASEMaster6371 (expert)
24,852 answers provided

Hi Roy,

I checked the code and it's 43 (fuel system). The car was running normal before I did the head, so I don't think something has gone out. If I have a vacuum leak would my idle rpm be higher than normal? My car's idle is at 800rpm, just like before the change of head gasket. Three days ago I had a problem with the car not having power even after I stepped on the pedal, but it seems like that problem has gone away. It's just idling abnormal and it also seems like the car is eating more gas than before. Besides these problems the car runs pretty nice. Also if I didn't have a problem with the EGV valve before what would cause it to have problems now?

Response from thanvas
9 questions asked

Check the valve clearances. Incorrect adjustment can cause this.

Answered by KHLow2008 (expert)
39,910 answers provided