p0171

I've had the good old P0171 Bank 1 Lean code for a couple of years now. I've tried replacing the vacuum line that goes to the back of the s/c, pcv, o2 sensor, fuel filter,tested for intake leaks, and cleaned the intake/tb all with no luck. I would assume if it was a cat I would be getting...

Hi guys. hope you can help me. my lightning has the error code P0171 system too lean bank 1.it kkeps coming back not when the car is running but it shows once you start up the car. History of my car is that it is a flooded unit and took ford 7 months to fix. i changed everything needed and...