1994 GMC Van emissions fail

1994 GMC VAN
87,442 MILES • V8 • 2WD • AUTOMATIC
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MILTON CRAIN
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  • 1 POST
idle-fail HCppm=663 reading 220 standard CO% =3.39 reading 1.20 standard
Sep 15, 2010 at 2:26 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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