My 1988 Pontiac Fiero Formula will not pass smog?

  • Thread starter Thread starter lilkhmerraider
  • Start date Start date
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lilkhmerraider

I live in California and my 1988 Pontiac Fiero Formula did not pass. What could be wrong?
 
how is your mpg did they go down. is the ses light on. dose it idle high.
if the ses is on pull your codes. bad mpg could be the o2, high idle could be the egr tube broke. a bad cat will affect your emission
 
In order to narrow down the possibilities, Could you post the readings?
Which reading was high?
 
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