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P0171 Diagnostic Trouble Code Discussion for June 2015

Fuel System Lean (Bank 1)


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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2002 Land Rover Freelander SE 2.5L Hesitation, Misfire, MIL Lamp on VIN: SALNY22272
hello everyone, this is my first time posting anything and need help! this vehicle will not accelerate sometimes when cold or hot, acts like a bad mass air or no fuel pressure, but is reading grams per second correctly and has proper fuel pressure while drivin...
June 11, 2015
2002 Ford E-150 Econoline 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTRE14202
P0171: Bank 1 Too lean. This van has a mil code for Bank 1 too lean. No code for bank 2 which I usually see on others but not this time. When cold I heard what sounded like a vacuum leak from the right side of the engine but it seems to go away as the engine warms. Checked all vacuum...
June 12, 2015
2001 Nissan Sentra GXE 1.8L Hesitation, MIL Lamp on VIN: 3N1CB51D91
P0171: Fuel Trim Lean. ... brought car in with engine running bad, so we scann and found code p0171 lean we checked fuel pressuer scope mass sensor found it to be in specs per aldata smoked and found no vac leaks. i have checked it the knowledge help section and noticed that eveyone...
June 19, 2015
2003 Jaguar S-Type 4.2L MIL Lamp on VIN: SAJEA01U23
P0171: System too lean Bank 1. Fault codes (p0171, P0174) return no matter what I seem to replace. Clear codes and they come back before you get out the door along with restricted performance. Have Autologic and they keep telling me vacuum leaks. Smoke tested intake and sprayed with some ca...
June 25, 2015
2003 Jaguar S-Type 4.2L MIL Lamp on VIN: SAJEA01U23
P0171: System too lean Bank 1. Fault codes (p0171, P0174) return no matter what I seem to replace. Clear codes and they come back before you get out the door along with restricted performance. Have Autologic and they keep telling me vacuum leaks. Smoke tested intake and sprayed with some ca...
June 29, 2015