Chevy Cobalt Forum banner

not ready codes

  1. Problems and Service
    Ok... Heres the Problem I have now....I did not get this car that long ago, so I was unaware at the time. ( I know buyer beware) But anyway, the situation is that the car has 3" straight back pipe. No Cat. So, the problem I seem to be facing now is that The Cat and Evap are both not coming...