I cant figure out why my car idles up and down about 100rpms. It just sits there and does that constantly. Up and down, up and down. It runs fine otherwise though. What could cause this? Could my TPS need adjusted? How do I adjust it? I cant find that in the Haynes anywhere. Any other ideas on the situation?

 

check for an intake leak somewhere. Loose fittings too. Good luck. Bill

 

Sounds like the TPS

 

can someone explain how to adjust the TPS?