P0141 - replaced sensor, still getting error code.

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by jBlaze3000, Jun 11, 2012.

  1. jBlaze3000

    jBlaze3000 New Member

    Replace the drivers side, downstream O2 sensor today after getting the P0141 error code on my 2000 Suburban (5.3). Disconnected the battery for a few minutes, started the truck, and the SES light is still on. Felt the sensor with the truck running and it was barely warm.

    One thing about the sensor - it's an AC Delco that I got on clearance at Rock Auto. Physically it looked like the right replacement (same threads, same hex size) but the electrical connector had 2 plastic tabs inside of it (to make sure it connects the right way) whereas the old connector only had one. Because of the extra tab it did not fit. I ended up popping out the pins and swapping the connectors.

    Anyone ever experience this with their new O2 sensor? What should I look at next?


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