Whitesnake Posted November 4, 2022 Share Posted November 4, 2022 Has anyone had any experiance with a Check engine Light and Eyesight and the associated systems off. Plugged in Scanner and says P0171. what was the issue for you, and how much for repair? Link to comment Share on other sites More sharing options...
silverton Posted November 4, 2022 Share Posted November 4, 2022 It's either your O2 sensors, or your MAF sensor. Start with the front O2 sensor. Repair costs vary by area. Labor rates are anywhere between 150-200 dollars an hour. Alldata calls for 1.7 hours of labor on top of whatever the shop wants to charge you for the sensor. They are quite a bit more expensive but I highly recommend a genuine subaru sensor. The only aftermarket front available on rockauto is NTK and I DO NOT recommend, if you can find a Denso go for it! 60 day warranty on the NTK lets you know how much you should trust those things. Link to comment Share on other sites More sharing options...
Whitesnake Posted November 4, 2022 Author Share Posted November 4, 2022 Just got it back 256.89 for the sensor and 155 in labor. Weird thing the sensor shopping online runs from $70 -> $200 Looking online CarQuest where they usually get parts i think sells for $150. Hard part, I could have done it myself, looks sooo easy to replace. Link to comment Share on other sites More sharing options...
silverton Posted November 4, 2022 Share Posted November 4, 2022 They do look easy to replace. til they aren't and you have to drop the exhaust manifold. btdt. Link to comment Share on other sites More sharing options...
Painless Posted March 30, 2023 Share Posted March 30, 2023 Careful with the Denso... https://www.legacygt.com/topic/134620-warning-denso-airfuel-sensor-pn-234-9138/#comment-2758368 Link to comment Share on other sites More sharing options...
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