2006 Chevy Cobalt HAVE ERROR CODE PO 442

2006 CHEVROLET COBALT
161,000 MILES • 4 CYL • FWD • AUTOMATIC
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SLUSHMOLD
  • MEMBER
  • 2 POSTS
Replaced gas cap with new gm cap still have error code po 442
Sep 27, 2009 at 8:25 PM
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BLUELIGHTNIN6
  • ✓ASE Certified Mechanic
  • 16,542 POSTS
  • ASE Certified Mechanic
many things could cause this code to appear. best way to find the cause is to use a smoke tester and test the EVAP system for leaks.
Sep 27, 2009 at 10:03 PM
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