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air pump/check valve 850 1997

posted by  someone claiming to be do on  Sat Dec 7 03:58 CST 2002 [RELATED]

I recently failed DEQ weth a PO410, no check engine light at the dash but the OBD II scan indicated the code. I found the check valve was replaced aproximately two years ago and I am curious what the procedure to diagnose if the cause is the pump or the valve ? I thing i have seen posts indicating the new valves have been very reliable. I am having some noise in the airpump but I don't know if this would throw a PO410 ? I am very confused. Has anyone had luck using a used airpump?

Thanks,






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New air pump/check valve [850][1997]
posted by  someone claiming to be do  on Sat Dec 7 03:58 CST 2002 >


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