WHAT ARE SOME THE CAUSES AS TO WHY THIS MODEL CAR WILL NOT PASS EMISSIONS TEST? on 1991 Buick Riviera

1991 BUICK RIVIERA

by in Atlanta, GA on December 31, 2012
1 answer 1 comment
ANSWER by on December 31, 2012
Some causes are , age , mileage , and emissions faults that set codes that have not been repaired and are causing excess pollution.
COMMENT by on January 01, 2013
Could it be it's 22 years old? There's so many things that could fail the test. Contact me at jmgrhm30@gmail.com for more help.