What would cause the car to have a high co reading at 2500 RPMs on a ca emissions test

Tiny
DBELFAY
  • 1980 DATSUN 200B
  • 180,000 MILES

Car passed all but this part of test

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Wednesday, June 20th, 2012 AT 7:30 PM

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Tiny
DRCRANKNWRENCH
  • EXPERT
  • 3,445 POSTS

It is probably just the age of the car. There could be oil getting past the rings and burning or the entire fuel charge is not getting burnt.
Not anything to worry about with a car of that age, it is normal.

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Wednesday, June 20th, 2012 AT 10:19 PM

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