I have a 05 gt, 32k miles w/ C&L intake w/ 91 octane tune, and MAC axle backs. Now my question is how many other people are having the misfire on your car? my car was running codes I think P0305 and P0301. Flashing check engine light, lack of power, etc. Now my tune has been on for about a year now and this misfire has just arose this month... Of course right before the factory warranty is about up. I took it to the dealership and they replaced my #1 coil.
I drove it about 3 days and of course on my way back from South Carolina my check engine light came back on (but shut back off) and all the same symptoms are back. This is the second time taking it into the dealership for the same issue (P0301) , but this time they only replace the spark plug. WTF?

Has anyone else had the same issues as me? I am trying to find out if it just a bad batch, or just my car and how to solve if returns.


thanks

 

I had this fixed a while back, if anyone else is having simular issues take it to the dealer. They replaced the #1 coil and spark plug and has been great since. The best part about it no $$ out of my pocket.

 

mine statred about 48000 miles. had it checked. bad #1 coil.went to champion 7989 plugs and replaced all the packs.runs better than ever