I have a 2001 Chevy lumina the 410 code for a
secondary air injection pump system came up so I
bought it and installed and my engine light is still
on was off for like 10 min but came back on what
else could it possibly be to make it go away so I
can inspect the car
quiet often it is a one way check valve that is a problem, if you have replaced the pump, check the hoses and the one way check valve.
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