Questions & Answers for: Pontiac cc 420

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Question about Pontiac

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o2 sensor trouble code I have a 05 vibe fwd 1.8L. my problem is my MAF is not compensating for extra air flowing into my intake. and now i get a trouble code showing im having an issue with my o2 ...

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Question about 2004 Grand Prix

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...an 05 grand prix gtp and out of nowhere I've got this hesitation that is the worst at high speed acceleration and wide open throttle. Driving normally there isn't a problem....HELP There are three ...

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...what can i do. IF IT RUNS OK DONT DO ANY THING Here is some great info on the PO 420 and related codes. Worth a read before you drop $$ on a new CC. EXPLAINING TROUBLE CODES PO420 PO421 PO430 ...

the check ingine kight is on the mechanic says its the check ingine Light is on the mechanic says its a code 420/ P0420 code represents several issues with the catalyst system. Air leaks at the ...

Question about 2001 Montana

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The 2001 Montana van with a V-6 uses a lot of coolant and there is the smell of burning anti-freeze. It runs very well as of now. my 2000 pontiac has code 420 when on idle is ok on drive or park I ...

Question about 2002 Grand Prix

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Engine code po 420 Thats a code for catalytic converter inefficiency. It usually means the cat is no longer able to process the exhaust gasses going through it and needs to be replaced. GM vehicles in

Question about 2001 Grand Am SE

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code 420 will not pass emmisions Google the code PO420 is a failed exhaust converter Always check all data & do other preventative maintenance items, before you go to inspection Can't go, if all ...

Question about 2001 Grand Am SE

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I have 2 codes PO 300 and PO 420 po300 is a random misfire code(could be egr passages blocked under upper pleinum;plug wires;plugs or coils.PO420 is catalatic converter below threshold(converter has ...

Question about 2001 Grand Am SE

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bank 1 p0420 Po 420 came up on my Pontiac grand am and I recently replaced the O2 sensor on bank 1. What do u think? Sometimes replacing the sensor fixes the problem, but more often the catalytic ...

I have a 2006 Pontiac Torrent showing codes P0171, P0420 and P0420P. Any help? 171 and 420 both have the same area that will cause these codes to pop.. you need either your O2 sensors replaced or new ...

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