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Burning fuel.

johnnyj773

johnnyj773

New member
I have a 2000 pontiac grand prix gt.For the past 2 weeks my car has been burning waay too much gas.I fill up,drive a total of 24 miles to and from work and i'm already burned a 1/4.I drive about 60-65 mph.I have a cat-back exhaust system and CAI.The engine light has been on for a while,muffler shop tested it,its reading an air code,410 i think.Got the cat convertor replaced.and the secondary air injection pump and cut off valve needs to be replaced.This wouldnt be causing it to burn would it?
 
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hmm hard to say the secondary injection is quite different on this car. i know it has to deal with emissions. ( air, fuel control ) so yea, it should hum or whistle when u start the car and u will hear a sound when it turns off. car warm and not ran for about 5 or 10 minutes. if it comes on and works then check for vacuum, or air leaks, or other issues...let us know so we can pass it on.
 
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