My check engine light was on and showed 2 codes, a 401 and a 401 p/d, I've replaced the egr valve and it still shows a 401 p/d and 4 incompletes. I've driven it 120 miles since doing the work. The incompletes should be gone by now, shouldn't they? How do I get rid of the 401 p/d code?
Aug 30, 2008 at 3:25 PM
