2008 Pontiac G6 Q&A
2008 Pontiac G6 Question: why is my check engine light on?
Did you PAY for the diagnosis? IF so the dealer should tell you. - ziptie12
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The check engine light is on and we have replaced the spark plugs. Sometimes the check engine light will flash. Could it be the o2 sensors? Had it checked at Autozone but they never gave me a copy ...