idle going up and down
 

So at first it was slow acceleration. but now I have a check engine light on now. and the RPMs are bouncing up and down like crazy, as if I were stepping off and on the gas pedle. This Is really weired, has someone ever experienced this with their car. maybe some help on what it might be. Thanks.

RE: idle going up and down
 

There should be code(s) stored - need to have car scanned.