P0141 - replaced sensor, still getting error code.

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

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  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?

    Thanks.

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