Was waiting for a friend for about 3 hours and took a power nap having the car idling & a/c on yesterday now the car sometimes hesitates/misfire and power loss but no SES light. What are your suggested things to look at first. Wasn’t sure if my power nap in the car had anything to do with it. I hear O2 sensors can wear out faster when excessive idling.

 

For starters, scan for codes. Not all of them turn on the SES.