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 car seems to be running perfectly well except for this code.
Was in the US last year and bought 2 heads that were ported and polished and slapped them on, could this be the problem or should i check on my o2 sensors or what?
Any help or advice will be greatly appreciated.
Thanks,
Joaquin
History of my car is that it is a flooded unit and took ford 7 months to fix. i changed everything needed and car seems to be running perfectly well except for this code.
Was in the US last year and bought 2 heads that were ported and polished and slapped them on, could this be the problem or should i check on my o2 sensors or what?
Any help or advice will be greatly appreciated.
Thanks,
Joaquin