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P0171 Diagnostic Trouble Code Discussion for September 2014

Fuel System Lean (Bank 1)


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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2004 Audi A4 Quattro 1.8L MIL Lamp on VIN: WAULC68EX4
P0171: system to lean. Hello Audi/VW techs...need your help. Car runs rough at idle with high short term fuel trims. Code PO340 is current. Recommended we replace camshaft position sensor. Did replace with Bosch one, code still remains and runs rough. I suspect acouple issues with t...
September 02, 2014
2000 Toyota Corolla VE 1.8L MIL Lamp on VIN: 1NXBR12E0Y
P0171: Fuel System Too Lean (Bank 1). Hi fellow iatn members, we having a terrible day with this corolla, it has lack of power and dtc po 171, system too lean, bank one is coming back right away.long fuel trim is about 28 %+, stft is 8%+ at idle and at 2000 rpm. we have no vacuum leaks, again fuel...
September 06, 2014
2006 Chevrolet Express 3500 4.8L Misfire VIN: 1GBHG31V56
P0171: Fuel Trim System Lean (Bank 1). miss fire all times, mostly on cylinders 1,6,7 some times 8... on idle or accel all times, checked compression, leak down, back pressure, spark, injecters pulse, noid lights test, all normal or good, smoked intake for leaks none found, fuel trim...LT #1 25% LT...
September 20, 2014
2006 Chevrolet Express 3500 4.8L Misfire VIN: 1GBHG31V56
P0171: Fuel Trim System Lean (Bank 1). miss fire all times, mostly on cylinders 1,6,7 some times 8... on idle or accel all times, checked compression, leak down, back pressure, spark, injecters pulse, noid lights test, all normal or good, smoked intake for leaks none found, fuel trim...LT #1 25% LT...
September 22, 2014
2006 Lincoln Navigator Ultimate 5.4L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 5LMFU28506
P0171: Bank 1 Lean. ... of CEL on and runs rough. We pulled a code for the bank 2 cam timing incorrect. Pulled the chains and the gears (cam phasers if you will) and found the alignment pin on the left (bank 2) side is sheared off. The bank 2 cam pulley fell apart into several pi...
September 30, 2014