lhrocker Posted May 9, 2005 Share Posted May 9, 2005 I have a 95 legacy that I have been slowly learning to maintain. I want to change the 02 sensors because I bought the car at 107K and I now have 155K on it. I think that there are 2 sensors in the legacy. Which one, should I change, or should I just do both? Thanx, Pete Quote Link to comment Share on other sites More sharing options...
Gnuman Posted May 9, 2005 Share Posted May 9, 2005 I have a 95 legacy that I have been slowly learning to maintain. I want to change the 02 sensors because I bought the car at 107K and I now have 155K on it. I think that there are 2 sensors in the legacy. Which one, should I change, or should I just do both? Thanx, Pete You could do both, but if you just do one, do the front one first. The front one is used for fuel trim, and the second one is a check on the first. Quote Link to comment Share on other sites More sharing options...
lhrocker Posted May 9, 2005 Author Share Posted May 9, 2005 You could do both, but if you just do one, do the front one first. The front one is used for fuel trim, and the second one is a check on the first. By front, you mean the one that is closest to the engine, right? Thanx. Quote Link to comment Share on other sites More sharing options...
Gnuman Posted May 9, 2005 Share Posted May 9, 2005 By front, you mean the one that is closest to the engine, right? Thanx. Yeah, front is closer to the engine. . . Quote Link to comment Share on other sites More sharing options...
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