Failed CO Emission on 89 IROC... HELP!
June 6th, 2010, 6:06 PM
#1
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Failed CO Emission on 89 IROC... HELP!
My 89 IROC Z28 (5.7L TPI) failed the CO portion of the emissions test. Eveything else passed. I am not much of a car person, so not sure what steps I could take to fix it. Any ideas would be appreciated. Thanks!
July 18th, 2010, 12:07 AM
#3
CF Pro Member
do a basic tuneup, usually if the CO lvl is high, it is not burning the fuel completely, if still a fail, then the injectors may have been changed to a higher rate (a posibility)
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