1999 Volkswagen GTI Catalytic converter

Tiny
JIMBO1976
  • MEMBER
  • 1999 VOLKSWAGEN GTI
  • 4 CYL
  • FWD
  • MANUAL
  • 90,000 MILES
Failed Mot on CO =0.49 @2650rpm (fast idle) but passed rest of emissions test? Could this be sensor rather than a cat replacement?
Do you
have the same problem?
Yes
No
Tuesday, October 5th, 2010 AT 5:56 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER
Could be a defective coolant temperature sensor or the oxygen sensor that's causing the carbon monoxide to go high
Was this
answer
helpful?
Yes
No
Tuesday, October 5th, 2010 AT 6:04 PM

Please login or register to post a reply.

Recommended Guides