Question about 2002 Pontiac Grand Prix
Driving it like this cause exhaust to push back through the EGR Valve, and it will cause the air sensors to all burn up and eventually burn through the intake plenum. I had to put $500 in parts MAF, MAP, EGR, Fuel Pressure Regulator, Intake Plenum, and the other air sensor that is not held on with tamper proof torques, and the converter, now it is running great!
Posted on Jan 31, 2009
I have the same car and i had the same problems
I did the same stuffs you did to try and figure it out
The answer, my friend is
REPLACE THE CATALYTIC CONVERTER
My mechanic replaced the catalytic converter and WOW, it runs like a brand new car
The car was getting dangerous to drive and now you touch the gas pedal and it goes
Posted on Dec 18, 2008
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Posted on Jan 02, 2017
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