E46Fanatics - View Single Post - Vanos seals solution
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Old 10-03-2009, 08:50 PM   #1049
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Join Date: Jul 2006
Location: San Rafael, CA
Posts: 61
My Ride: 323i
Originally Posted by devedean View Post
Yes. I made sure to follow your step by step directions exact. I replaced both seals for each groove, lubricated them with new engine oil, and made sure the pistons moved smoothly in their cylinders during reassembly. I'll remove and clean the VANOS exhaust solenoid and piston and let you know the results.

Number 4 and 5 are the most likely causes. Is it possible to mess up the engine timing when re-attaching the VANOS to the cylinder head?
I pulled the exhaust solenoid and cleaned it but there was no change to the codes or engine performance. It still throws the "VANOS, faulty exhaust reference value", idles rough, and chokes when letting out the clutch at low rpms. I'm at a loss now.....
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