Turneyc123

Replaces the o2 sensors today and still having the same issue. Coil packs, wires, and plugs are all relatively new. Last 50k miles or so.

Replaced them today and the problem is still occurring.

Throttle body is new, fuel filter is new, fuel pump is new, coil packs are new, spark plugs and wires are new, and just replaced all the o2 sensors today. Problem is still occurring. What’s next?

My 2003 Silverado 1500 5.3 LM7 LT is having some issues. It is running rich on bank 2, multiple cylinder misfire, and o2 bank 2 sensor 1 is showing low voltage. Any recommendations on where to start with repairing it would be greatly appreciated.