Hey guys new to site and needed a lilttle help with my G6. I jave an intermitten check engine light. Doesn't affect the performance but my speed and RPM needles jump every now and then. Anyone else have this problem or a solution?? Oh and low fuel light will kick on when there is plenty left. Scanned it at advanced no codes. Please help. It has 52k on it driven very lightly except the occasional flooring. It's a 05 sedan.