Allroad threw P0491 and P0492 codes. Anyone have any experience with this
09-09-2008, 08:13 AM
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Allroad threw P0491 and P0492 codes. Anyone have any experience with this
Looks like its an issue with the secondary vacuum pump on bank 1 and bank 2. Anyone got any info here? Where is the vacuum pump, and could it be a solenoid or something else causing the car to throw the codes?
thanks,
Travis
thanks,
Travis
09-09-2008, 01:10 PM
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Most likely a failing pump and/ or leaking hoses. The pump sits at the back
of the engine just a tad closer to the driver side than the passenger side.
You will see a Y hose that comes out of the pump Y's off and then goes to the back of both cylinder heads.
You will see a Y hose that comes out of the pump Y's off and then goes to the back of both cylinder heads.
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