Thread: 2005 Pontiac Grand Prix catalytic converter?

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  1. #1 2005 Pontiac Grand Prix catalytic converter? 
    SE Level Member fairkitty's Avatar
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    I just bought this car, love the look, love the feel of the car....but went to have it inspected, and a code came up, P0420 I beleive, and the inspection guy informed me it could be the catalyic converter.

    1st question...is there any type of warranty that would cover this part? Ive heard of much older cars that have no issue with catalytic converter and was wondering if I got a bum cc, maybe a manufacturers defect?

    2nd question...what do yall suggest I do to fix this problem? I just have the " well, it could be.." phrase, and after dropping substantial $$ the code still comes up.

    Anything yall could help me with I would greatly appreciate! I wanna be cruising the streets soon!
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  2. #2 Re: 2005 Pontiac Grand Prix catalytic converter? 
    DUI BABY Bio248's Avatar
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    it could be two things..

    1) the rear o2 sensor is bad
    2) the cat is bad
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  3. #3 Re: 2005 Pontiac Grand Prix catalytic converter? 
    Turbo is the way to go. REDCRAPGP's Avatar
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    GM warrantys the cat for up to 80k. I just got my down free of chrg at 74k. As far as the codes could but o2 sensors or bad cat.
    Squirrels are my engine. I need a Ford Regal
    04 Comp G.
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  4. #4 Re: 2005 Pontiac Grand Prix catalytic converter? 
    GT Level Member AmericanRiceEater's Avatar
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    Get it illegally inspected
    Black 2000 GTP Coupe. SSAutoChrome headers, K&N Cold Air Intake, Reptile Tuned PCM, 3.4" ZZP MPS, 104 Autolites & 180 Stat.

    PS3 Online: Zirpola (Dont use mic.)
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