- Jan 26, 2014
- 39
- 0
- 7
I don't have freeze frame data to prove it but I can drive it around for a while after clearing the code then when I shut it off and turn it back on the code pops up after a minute. so that tells me its a vacuum leak and not a fuel delivery problem cause it only affects the car at idle(idles a little rough but barely noticeable) so the egr valve when I did the smoke test barely leaked but I would think that would cause a p0171 and p0174 code correct me if im wrong. ive checked everything but that's the only problem ive found