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Service Engine Light after new cat installed

12 messages,  Last post on Jan 29, 2009 at 7:08 PM

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#8 of 12 Grand Prix Problems by latashac Nov 06, 2008 (10:04 am)
I own a 2000 Grand Prix GT V-6 it has about 117,000 miles on it and really since I have had it I have not had any major problems with except for the normal maintance. Since I have pd it off this year I have begun to have a problems.. First it would turn over,but it would not stay start so I replaced the Air flow take sensor and also had a induction flow before I put the sensor on and that did not work. Once the sensor was put on it started and stayed started,but it ran a little rough so back to the shop we go (I work for White Tire ) the same day I took it back to them the CHECK ENGINE LIGHT comes and stays on so the hook it up to the computer and it tells them something from the 02 sensor, and right now the light is still on. I do not know what to do?????   Anyone have a suggestion or a similar situation please help Replies to this message: spider_0072 (Jan 15, 2009 12:17 pm)
#9 of 12 by sjennings1 Jan 15, 2009 (10:51 am)
Im am in the process of purchasing a 2001 grnd prix GT w/ 67000 miles. I am currently the proud owner of a 2003 freelander land rover and has nothing but problems. I still owe 9000 on it and can't afford a new car right now. Just curious.
#10 of 12 Re: Grand Prix Problems [latashac] by spider_0072 Jan 15, 2009 (12:17 pm)
Replying to: latashac (Nov 06, 2008 10:04 am) It depends on the code but it could be that the catalytic converter is bad, this will cause performance issues. If you do have to replace it I would make sure that you put in new O2 sensors too. You could try to replace the O2 sensors first, about $80 a piece, to see if that fixes it. There is one in the exhaust manifold and one directly after the catalytic converter. Don't buy an aftermarket cat, make sure you buy an OEM converter. They cost a little more but I have heard of problems coming from aftermarket cats.
#11 of 12 02 grand prix headlight len by hdfxdwg Jan 29, 2009 (7:04 pm)
#12 of 12 headlight lens on 97 thru 2003 by hdfxdwg Jan 29, 2009 (7:08 pm)

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