Dad's Suburabn will not pass Colorado emission test:
HC reading - 5.73 / Limit 4.00
CO reading 65.60 / Limit 25.00
Obvious CO way to high and running rich - he says there are no check engine lights for code triggers.
Any thoughts on what to investigate first?
have the same problem?
Sunday, December 10th, 2006 AT 9:34 AM