My GT started misfiring a bit on my way home from work. It would only do it in low rpms and then it would be fine. But today I have not had any problems driving it. Should I just pay for a diagnostics test or is there something I can do on my own to figure out the problem?? Any advice would be great. Thanks!

 

let it rock till it throws a MIL then take it down to advance auto or whatever and run the code for free

 

Ok so you are gonna have to explain what an MIL is lol sorry

 

a check engine light