Hard Starting After Sitting and P0016
I just got a 2008 Cobalt for free after my Trailblazer was totaled in an accident. It was in sad shape, but gets me from here to there. Problem is, after it sits for a few hours, it's really hard to start and throws a P0016 code. After it starts, it runs good and restarts easy, but looses power going up hills. Changed oil and filter, and put in new plugs. I know just the basics about engines, but suspect a timing issue. Am I correct with this assumption?
EDIT: I also cleaned the throttle assembly. It was nasty.
Last edited by Tim Woodruff; 08-31-2017 at 04:25 PM.