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Re: VW secondary air monitor & pump not running
Posted to Technical Discussion Forum on 1/23/2010

Mark,

Yes, thankyou, I did read your post on this code. The vacuum I have is sufficient at 15inHg. If I apply a ground to the vacuum solenoid and a ground to the pump relay - then the system injects lots of air and runs the front O2 sensor right down to 0.00... Login to read more.