I changed my spark plugs and air filter this past weekend and when I started the car afterwards my traction control light was on but went off after a restart and now I have slow acceleration from a dead stop like it's starting in 2nd gear. It wasn't doing it before. What should i look for?

 

I did also clean some build up on my throttle body too, don't know if this might have done something.

 

did you hook up the maf sensor , and disconect the battery for awhile to reset the ecm?

 

Welcome!

I would check all the plugs going to the air filter assy, and if all looks good, go to Advance Auto Parts or Auto Zone and pull the code to find the problem. Whether there is a CEL on, there is a code stored if it was briefly on and no longer there..

 

I haven't pulled the battery cable yet to reset and I'll try to stop by autozone tomorrow to see what a reading says.

 

Yes the maf sensor is connected.

 

How are things going with your HHR? Were able to get your concerns resolved?

Michelle, Chevrolet Customer Service