code p0174

  1. J

    Codes P0171 and P0174 diagnosis help

    So my TJ threw bank 1 and 2 lean code recently, so plugged the OBD reader in and checked the LTFT and O2 sensor data. LTFT at idle is about 20% at Running Temp in Closed Loop, on throttle open (in Neutral), the LTFT drops for a split second then goes back up to 20% and remains there till WOT...