Ok today I went to start the car after it had been sitting for a bout a half hour, and the car jumped to a bout 2000 rpm then dropped quite quickly to normal idle and then again it dropped and stalled. After giving it some gas I could get it started and then it ran fine and strong. This then happened 2 more times today.

Any idea of what this could be?

Thanks

 

low compression?

 

idle sensor?

 

Der Sparkin' Plugs, fuel filter, vacuum leak, blah blah blah.

Or, the mother of all idle problems: a blown (or leaking) lower intake manifold.

Really fun to fix....

 

alright, I am pretty sure its not the plugs or fuel filter, they were replaced a couple 100 miles ago.