1998 Cadillac Deville code

1998 CADILLAC DEVILLE
89,000 MILES • V8 • 2WD • AUTOMATIC
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MICHAELFUCHS
  • MEMBER
  • 1 POST
I have a code P1646. EVAP Vent Valve output circuit. What is that an how would I fix this?
Oct 20, 2010 at 4:59 AM
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BLUELIGHTNIN6
  • ✓Experienced Mechanic
  • 16,542 POSTS
most likely culprit is EVAP vent valve but would be best to have repair shop use diagnostic scan tool to aid in diagnosing this issue
Oct 20, 2010 at 10:15 AM
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