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Hello all, I'm getting a 153 error code in my 96 deville (oxygen sensor). I've heard I have 2 oxygen sensors on my car. My question is: Which sensor is causing this fault, where is it, and is this something I can replace myself? Thanks
 

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2005 CTS-V, 1994 Infiniti Q45
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You should just replace both sensors at the same time, Youll be glad you did...... And it should be a DIY, although I cant say for certain......

By the way, welcome aboard!!!!
 

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2003 Cadillac DeVille
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mrhyde719003 said:
Hello all, I'm getting a 153 error code in my 96 deville (oxygen sensor). I've heard I have 2 oxygen sensors on my car. My question is: Which sensor is causing this fault, where is it, and is this something I can replace myself? Thanks
Actually 1996 DeVilles have THREE oxygen sensors; 2 mounted on the manifolds and one mounted behind the catalytic converter. P0153, as you're getting is Oxygen Sensor Slow Response, Sensor #1. My guess is the sensors on the manifolds need to be replaced. I believe the downstream sensor is fine.
 
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