Emissions

Asked by Seanc625 Dec 03, 2016 at 12:35 PM about the 1987 Pontiac Fiero GT

Question type: Maintenance & Repair

My 87 fiero gt won't pass emissions hydrocarbons
are 2.48 and needs to be at or below 1.6 and nox
was 2.56. Needs to be at or below 2.5

1 Answer

F_O_R answered 7 years ago

A new catalytic converter probably would clear that problem up but you want to make sure it is not running too rich and that you tune it up.

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