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97 GrandMarquis shows PO133

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Guest
Anonymous Poster
snoe2006@yahoo.com

Aug 18, 2008, 5:59 AM

Post #1 of 5 (2691 views)
post icon 97 GrandMarquis shows PO133 Sign In
Hi all, the check engine light came on and when checked it showed PO133 Oxygen Sensor Circuit slow response(bank 1, sensor 1). The thing is I changed all 4 sensors Oct. 07. Could it have gone bad in less than a year? Thanks for any information!


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Aug 18, 2008, 6:21 AM

Post #2 of 5 (2688 views)
Re: 97 GrandMarquis shows PO133 Sign In
In Reply To
Hi all, the check engine light came on and when checked it showed PO133 Oxygen Sensor Circuit slow response(bank 1, sensor 1). The thing is I changed all 4 sensors Oct. 07. Could it have gone bad in less than a year?
The short answer is "Yes"

Is it running well now? If so I'd check wiring and connections, reset and see if it returns with same code,

T



willyg
User

Aug 18, 2008, 6:27 AM

Post #3 of 5 (2682 views)
Re: 97 GrandMarquis shows PO133 Sign In
It has had a rough idle lately, and then the code came up, but I wouldn't have guessed the sensor would have gone bad so quickly. Thanks


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Aug 18, 2008, 7:55 AM

Post #4 of 5 (2678 views)
Re: 97 GrandMarquis shows PO133 Sign In
http://www.autozone.com/...eId=0900c152800758b6

Click that for a good read and info on o2 sensors. There's more to them then you might think. The issue at hand will be to determine whether the sensor is causing the rougher idle itself of was damaged by something else.

Car's computer and code has helped to let you know which one is not providing proper information but can't tell you why. If you just unplugged one it would notice that info isn't available and set a code.

Looking right at it and all wiring involved with it will be helpful along with further testing if possible. Some brands may be more likely to fail early than others,

T



Guest
Anonymous Poster
snoe2006@yahoo.com

Aug 18, 2008, 8:00 AM

Post #5 of 5 (2674 views)
Re: 97 GrandMarquis shows PO133 Sign In
Thanks for the information!





 
 
 






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