gmc 2500 hdsle 6.0l ran thindied it stiil says both banks are lean

Question

throtle pedal postion senser was relaced it started ran breifly then died codes left p0141 p0143

Answer 1

Hi there,

These codes indicate an issue with the heated O2 sensors. Here is a list of possible causes.

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

Read more: https://www.autocodes.com/p0141_gmc.html