2007 V8, 166k Miles. Cats O2 MAF Replaced at 100k. Plugs, Radiator, thermostat, water pump, EGR replaced at 150k. Dual batteries. Original Brake Switch. Have P0420 & P0430 codes (they have been around on and off since 70k miles)
I have noticed my Bank 1 Long Term fuel trim is 1.5 to 4% higher than Bank 2, both under load and idle. Short term fuel trims on both side seems to be ok. Lambda reading on both sides are fairly equal.
QUESTIONS >> how should I go about troubleshooting why the imbalance? Full computer reset dont fix the problem. I do have the latest LR firmware on the truck.
Running out of ideas how to solve this...
I have noticed my Bank 1 Long Term fuel trim is 1.5 to 4% higher than Bank 2, both under load and idle. Short term fuel trims on both side seems to be ok. Lambda reading on both sides are fairly equal.
QUESTIONS >> how should I go about troubleshooting why the imbalance? Full computer reset dont fix the problem. I do have the latest LR firmware on the truck.
Running out of ideas how to solve this...
