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Failed emissions test

(1990 Chevrolet Astro)
in North Las Vegas, NV on February 05, 2010
Ideal speed HC greater than 220 parts per million reading was 595 parts per million note the Van ia a 1988
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Popular Answer
on February 05, 2015
Could be a bad catalyst, bad air pump, hard to say. A worn out engine will fail too.
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