I had my EML come on a while back so I bought an OBD II scanner so I could find out what was causing the light to illuminate. The code was P0131 which is the O2 Sensor, Bank 1 Sensor 2. I replaced the sensor under the hood right by the engine but the light stayed on. I have been reading up quite a bit, but no where online can I find the location of the post-cat lambda sensor? Could someone please help.
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Thursday, September 22nd, 2016 AT 2:55 PM