Tort62 Posted September 7, 2017 Share Posted September 7, 2017 I got a P1133 code which is upstream O2 sensor gone bad I think. Anybody know where it's located or have a video. 99 legacy L 2.2 Quote Link to comment Share on other sites More sharing options...
Mike104 Posted September 7, 2017 Share Posted September 7, 2017 There should be two sensors both on the forward Catalytic converter one front and one back. Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted September 8, 2017 Share Posted September 8, 2017 On top of the first cat. Wire runs down the bellhousing from the main harness on the passenger side. 1 Quote Link to comment Share on other sites More sharing options...
Tort62 Posted September 8, 2017 Author Share Posted September 8, 2017 I was looking around the exhaust manifold. I will look under the car tomorrow. Thanks Quote Link to comment Share on other sites More sharing options...
Tort62 Posted September 8, 2017 Author Share Posted September 8, 2017 (edited) Thanks Edited September 8, 2017 by Tort62 Quote Link to comment Share on other sites More sharing options...
Mike104 Posted September 8, 2017 Share Posted September 8, 2017 I was looking around the exhaust manifold. I will look under the car tomorrow. Thanks If you remove the air intake items from the throttle body and shine a flashlight down on the right side of the engine your should be able to see the wire that runs down to the FWD O2 sensor. Quote Link to comment Share on other sites More sharing options...
Tort62 Posted September 8, 2017 Author Share Posted September 8, 2017 It can be replaced from above or underneath? Special tool needed? Quote Link to comment Share on other sites More sharing options...
Mike104 Posted September 8, 2017 Share Posted September 8, 2017 I did mine from underneath. 7/8" Oxygen Sensor wrench Harbor Freight Quote Link to comment Share on other sites More sharing options...
Tort62 Posted September 8, 2017 Author Share Posted September 8, 2017 I can see the sensor under the cv axle. Simple job? Quote Link to comment Share on other sites More sharing options...
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