Replies to post #4574 on Cars, etc. (GEARHEAD)

[Phil(Hot Rod Chevy)]

Let us know what they say when you have the codes read again.

I think they hit it when they said you have a coil that is not firing.

Phil

[beigledog]

The guy at Advanced Auto Part suggested that I switch the two ignition coils in their places on the module and then hook the computer up for codes again. It still came back with cylinder 1 misfire. He suggested that I replace the module, but at $120 I'm not going to replace it unless I know it's going to fix the problem. Any other ideas for my rough idling and poor gas mileage problem (it's probably gone from 27-28 mpg to 20-21).