C
carmen
Guest
I have a 2008 Pontiac Grand Prix GXP and am trying to install a Jet Performance power module and I have follow the instructions to the T. After the install the vehicle is idling very rough and the check engine light comes on. I have re installed the module over ten times. I have sent it back once and Jet Performance has replaced it for me but the same thing is happening. Im not sure if this is a issue but it smells really rich after I instaled it and started it. Please help, Im at whits end!