Question

2002 Chevrolet Silverado 5.3L with engine code P0141, where is this sensor located at?

Answer 1

Hi there,

This code doesn't point to a specific O2 sensor. The cause of the code is it takes to long for the heater to get up to temp on the O2 sensor. Without a scan tool you can't determine which one is failing. It's best to have this diagnosed professionally then do the repair yourself.

Answer 2

P0141 CHEVROLET - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2

Read more: https://www.autocodes.com/p0141_chevrolet.html