Question

2002 Pontiac Trans Am 5.7L with engine code P1153 and P0515. What is it?? What do I need to fix it? What are parts?

Answer 1

Both codes are for the front O2 sensor bank 1. You probably have to replace the sensor to fix the problem.

P1153 PONTIAC - HO2S Insufficient Switching Bank 2 Sensor 1
Read more: https://www.autocodes.com/p1153_pontiac.html

P0151 PONTIAC - HO2S Circuit Low Voltage Bank 2 Sensor 1
Read more: https://www.autocodes.com/p0151_pontiac.html