06 Jetta 2.5 Intermittant fast idle with p0171 p2279 and p0507 codes returning after replacing valve cover and oil filter housing.... and runs rough at times

snapy71
110

Asked by snapy71 Apr 10, 2012 at 01:09 PM about the 2006 Volkswagen Jetta 2.5L

Question type: Maintenance & Repair

1 Answer

snapy71
110

Found the problem. Found a faulty purge flow solenoid causing a massive internal vacuum leak whick in turn caused the fast idle and lean codes....

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