Mechanics

CHEVY HAVE SERVICE ENGINE SOON LIGHT ON

2002 Chevrolet Silverado

Engine Mechanical problem
2002 Chevy Silverado V8 Two Wheel Drive Automatic 88000 miles

Have code P0411, secondary air injection incorrect, I was told that it could be the air pump, a vacuum tube, or a check valve. Any insight on where to start?
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BWF3
March 25, 2010.




P0411 is not a valid fault code for the above vehicle.

Dennyp
Mar 26, 2010.


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