94 es300 Posted November 25, 2007 Share Posted November 25, 2007 From what I have read here the sensor that needs to be replaced would be the one between the firewall and the Engine before the Cat. Just looking for conformation so I change the correct one. Quote Link to comment Share on other sites More sharing options...
djspawn00 Posted November 25, 2007 Share Posted November 25, 2007 From what I have read here the sensor that needs to be replaced would be the one between the firewall and the Engine before the Cat. Just looking for conformation so I change the correct one. well s1 indicated before the cat so you're right about that part, but i'm not too certain which bank is bank one on your car... Quote Link to comment Share on other sites More sharing options...
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