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P0171 Diagnostic Trouble Code Discussion for November 2014

Fuel System Lean (Bank 1)

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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2006 Ford F-150 XLT 5.4L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire VIN: 1FTPW14V96
P0171: lean bank 1. Thanks for the help in advance. I replaced the spark plugs in this truck for needed maintenance. 6 of the 8 broke off and i extracted them. I let them soak in motorvac solvent for a night before extracting them the next day. Now the vehicle has no power. It ac...
November 03, 2014
2008 Jeep Compass Limited 2.4L Surge, MIL Lamp on VIN: 1J8FT57W78
P0171: Lean. ... codes-- got P2017 and P0172 (rich). Checked basics (wiring and connection to actuator, vacuum leaks (none), etc.) Cleared codes and road-tested. No codes. When car was picked up, MIL was back on--checked codes, and just P2017. Cleared again, and MIL (and j...
November 09, 2014
2001 Toyota RAV4 2.0L Excessive Emissions, MIL Lamp on VIN: JTEHH20V81
P0171: Fuel System Too Lean (Bank 1). long term fuel trim bank 1 is 19.5, short term arround 0 bank 2 is 7.0 and 0
November 14, 2014
2004 Kia Rio 1.6L Hesitation, Cuts out, MIL Lamp on VIN: KNADC12564
P0171: Fuel System Too Lean. ... codes and P1166 code. Engine act like its choking out when revving (like an air flow meter acts )but after the rpm's start to go up if revs fine. Spark plug wires were chewed by some rodent but done see any other wires ch...
November 24, 2014
2005 Mazda MPV ES 3.0L Misfire VIN: JM3LW28A05
P0171: lean 1. van came in with p0171 and p0174, customer complained of misfires, no misfire codes and no misfires shown in mode 6. found intake tube between maf and tb ripped. replaced cleared codes and road tested. still running very lean. fuel trims run up to 25% both ban...
November 26, 2014