Super S 69 Posted December 29, 2006 Report Share Posted December 29, 2006 Anyone know which o2 sensor it is i got i scanned at auto zone so i just forgot which one it was. I got erased to to because maybe i changed an o2 sensor before and never eraseded the code. After i changed the s/c the cel went away. Then driving it came on agian scanned it thats what came up. Btw i got it erased about a week ago so who knows. If it will come on again im assuming it will. Anyone anyone anyone Quote Link to comment Share on other sites More sharing options...
mts Posted December 29, 2006 Report Share Posted December 29, 2006 ????? CODE ????? P0421? P0420? Quote Link to comment Share on other sites More sharing options...
Super S 69 Posted December 30, 2006 Author Report Share Posted December 30, 2006 ????? CODE ????? P0421? P0420? PO421 sorry about that lol Quote Link to comment Share on other sites More sharing options...
mts Posted December 30, 2006 Report Share Posted December 30, 2006 Mine is on and off once a week, once a month... every 3 months... these cars are known to have sensitive sensors... Quote Link to comment Share on other sites More sharing options...
Super S 69 Posted December 30, 2006 Author Report Share Posted December 30, 2006 Mine is on and off once a week, once a month... every 3 months... these cars are known to have sensitive sensors... Do you know which o2 sensor it is that causes p0421 i will change it. Cause when i replaced the s/c it said change all the o2 sensors in the instructions that came with it . I just dont have the money right now. Plus i dont want the o2 sensors to damage the cats. And btw the way how strong are they anyway. Or they usually last the life of the car???????????? Quote Link to comment Share on other sites More sharing options...
Renboy Posted December 31, 2006 Report Share Posted December 31, 2006 P0421 is the o2 sensor on the rear bank, after the precat. Quote Link to comment Share on other sites More sharing options...
mts Posted December 31, 2006 Report Share Posted December 31, 2006 Oh lucky you... the hard one to get at. Quote Link to comment Share on other sites More sharing options...
Renboy Posted December 31, 2006 Report Share Posted December 31, 2006 Iirc it's not that hard. You do need an o2 socket and about 2' of extension. Remove the passenger wheel, unclip the connector for the sensor, and then you should be able to remove it from the wheel well with enough extensions. Quote Link to comment Share on other sites More sharing options...
mohamedeladawy@hotmail.com Posted December 31, 2006 Report Share Posted December 31, 2006 well..there ya go! Quote Link to comment Share on other sites More sharing options...
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