1999 Chevrolet Malibu 3.1L with engine code P0141

Question

Hi, got a p0141 (01/02 and P 02/02) code. Would I need to replace both sensors? No, haven't checked the fuse yet.

Answer 1

P0141 02 heater sensor malfunction Bank 1 sensor 2

Sensor 2 are downstream sensor or catalytic monitor sensor . If the fuse went out it cause Bank 1 Sensor 1 to have a code also but if you have only Sensor 2 , this more likely going to be a worn out rear 02 sensor.

Answer 2

P0141 CHEVROLET - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 2
Read more: https://www.autocodes.com/p0141_chevrolet.html