sup guys? the engine check light code is p0135; heater circuit malfunction (bank 1 sensor 1). i think ,but not sure that the sensor closest to the driver side is the one thats broken. i just received an o2 sensor from my uncle and wondered if you guys could help me save some money and show me how to install it. i know where the o2 sensor located at (on the exhaust system) but, unsure of which sensor is the one thats broken.
Here are the steps i think are right for a proper installation of the o2 sensor:
1. wait till the truck cools down
2. unplug the sensor first then unscrew the bolts
3. after installing the sensor, reset the EFI by taking the fuse out and waiting for a few minutes before placing the fuse back
4. start the truck and cross my fingers.
Thanks for the feed back!