So this engine code article applies to Toyota, Chevrolet, Ford, Nissan, Honda, GMC, Dodge, etc.Basically this means that an oxygen sensor in bank 1 has detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has ...
The OBDII trouble codeP0171 - System Too Lean (Bank 1)means that the engine air-fuel mixture is too lean, or there is too much air and too little fuel. Driving a car with the code P0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion t...
I was away for 3 plus weeks and have not been able to give the ol' beast any attention. Well, I did replace the bank 1 sensor just because, and that didn't do a thing. I had a ECM laying around and tried that but that did not change the fuel trims...I then focused on the ...