87 GMC 1500, Check engine light will not come on when turned to on position. Circuit board is good, replaced all light bulbs. Won't pass smog because of this stupid light. Emissions are perfect though. Any idea. Could it be computer going bad? How do you test the computer (if possible). Can't get codes manually since light won't come on and have no access to a scanner.
SPONSORED LINKS
Monday, November 22nd, 2010 AT 1:04 AM