adwolf1 Posted April 5, 2005 Share Posted April 5, 2005 I'm planning to try to replace the front O2 sensor in my '96 2.2L legacy (it's got a ton of miles, smells like gas when it starts, and the MPG is going downhill.. so i figure this may be the cause.) Before I give this a shot, just a couple of questions: 1) i understand that this is easy to replace, even for the lesser skilled. Just bend over the fender & you'll see the O2 sensor, no need for jacking/getting under the car. is that correct? 2) I noticed on oxygensensors.com they actually list 3 different OEM sensors: Walker 250-23088, Denso 234-3088, Bosch 13702 Which is the best/easiest one to use? (my criteria is that it fits without any hassle... which one is the one that subaru actually uses on the cars from the factory?) 3) is there anything else i should know before attempting this? Thanks! Link to comment Share on other sites More sharing options...
Handtool Posted April 5, 2005 Share Posted April 5, 2005 I just replaced mine 2 weeks ago. I went with the walker 4 wire universal based on recomendations from this board. While not a direct swap it did make a nice difference in idle as others have reported. The walker unit was high quality and I would not hesitate to use it again over the oem bosch sensor. Your correct in that there is no need to jack up or lay under the vehicle to do this job. If the sensor you select doesn't come with antisieze compound, (the walker did) get some. Link to comment Share on other sites More sharing options...
adwolf1 Posted April 5, 2005 Author Share Posted April 5, 2005 I just replaced mine 2 weeks ago. I went with the walker 4 wire universal based on recomendations from this board. While not a direct swap it did make a nice difference in idle as others have reported. The walker unit was high quality and I would not hesitate to use it again over the oem bosch sensor. Your correct in that there is no need to jack up or lay under the vehicle to do this job. If the sensor you select doesn't come with antisieze compound, (the walker did) get some. thanks, handtool! i'll give it a shot this week i guess (well, first i'll try to loosen the one that's already in there...) what tool do you recommend to do it? (i see that they have a special socket for these things at oxygensensors.com) Link to comment Share on other sites More sharing options...
Handtool Posted April 5, 2005 Share Posted April 5, 2005 (i see that they have a special socket for these things at oxygensensors.com) I wouldn't bother with the socket. A box end wrench (either 17 or 19 mm, I can't recall) will slip over the connector and works fine. Good luck. Link to comment Share on other sites More sharing options...
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