Quote:
Originally Posted by NxTH
I had this exact symptom, but only when it was humid or raining and doing a cold start. Restarting the car got rid of the error. My code was on the intake side. Changed solenoids, camshaft sensor for intake and checked if there was sludge going up to the solenoids, checked fuel filter cap that the cage was still attached and o-rings were still there, but those were all dead-ends. Also tried different oils, 5W30, 5W40. Finally found out that the problem was caused by my ground strap that was partly eaten by a rat and rest was just badly corroded. IF your problem seems to come on when it's humid, I would start with checking various wiring harnesses, straps and connections for corrosion. It's baffling why the code points to VANOS, and it *can* be an issue that is not VANOS related at all. Perhaps the moisture trips a sensor and the VANOS just doesn't do what it's supposed to.
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I'm in Florida and on that day there was a cold front, temps dropped a good bit. This has only happened once. I'll be doing an oil change tomorrow morning and will check on the timing chain, will see if its loose or not. Thanks for your input, i'll check the harnesses while i'm at it.