1991 BUICK RIVIERA
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1991 Buick Riviera Question: WHAT ARE SOME THE CAUSES AS TO WHY THIS MODEL CAR WILL NOT PASS EMISSIONS TEST?
Answer #1ziptie12 December 31, 2012, 20:11Master
Some causes are , age , mileage , and emissions faults that set codes that have not been repaired and are causing excess pollution.
ReplyPARTS GUY, January 01, 2013, 05:18Master
Could it be it's 22 years old? There's so many things that could fail the test. Contact me at firstname.lastname@example.org for more help.