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P0174 Diagnostic Trouble Code Discussion for November 2009

Fuel System Lean (Bank 2)

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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2004 Audi A8 Quattro L 4.2L Poor Idle Quality, MIL Lamp on VIN: WAUZZZ4E84
P0174: System Too Lean - Bank 1. This Audi A8 L Quattro will rough idle at cold start up for about [...] and during that time engine light will flash for about 15-20 seconds.Could not find any vaccum leaks.Please help. Thank You
November 01, 2009
2002 Lincoln LS 3.0L Poor Idle Quality, Surge, Misfire VIN: 1LNHM86SX2
car was brought in for chugging and miss fire had 121,000. replaced plugs and fuel filter cleared computor road tested returned. two days car returned with same chugging problem. replaced downstream o2 bank 2. this time a week later same problem. found vaccume...
November 07, 2009
2006 Chevrolet Tahoe 5.3L No Start, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 5450673541
P0174: Fuel Trim System Lean (Bank 2). this goes out to fleet techs. We've been getting hard start with only E85 fuel vehicles only. Short term fuel at 3% long term is at 25%. Hard starting is cold only at below 40F fuel preasure is at 62psi at key on first cycle injector flow is even across the bo...
November 09, 2009
2004 Ford Ranger Edge 4.0L Poor Idle Quality, Surge, Cuts out, Stall VIN: FTREDSDEF4
Hey guys got this ranger came in with codes po171,174,720,722,cleared them ran truck,run good then goes into a spell wont run good wont rev up,check codes po1000,720,722,clear the codes then runs fine,acts up again codes are back,clear runs fine,any ideas?NOT ...
November 12, 2009
2002 Ford Ranger Edge 4.0L Hesitation, Cuts out, MIL Lamp on VIN: 1FTZR45E12
P0174: Lean Bank 2. Hi everybody and thanks in advance for your help. This vehicle idles OK but when accelerate sputters, hesitates and fuel trims go up to -23 B1 and -20 B2 MAF 54.26 gm/s with 2.88 V. and the codes listed below. I installed a NAPA MAF sensor, no change, found fu...
November 14, 2009
1999 Ford Expedition Eddie Bauer 5.4L MIL Lamp on VIN: 1FMRU17LXX
P0174: b2s1 lean. vehicle came in with p0131 o2 volts low, 171 and 174 lean b1/b2. found b1 sensor unplugged. plugged it in, scanned, found lt trim b1/b2 +20% idle and +5-7% at 2500rpm's. maf read 4.6 KPa at idle. smoked system, found iac and pcv actively leaking. replaced maf,...
November 15, 2009
1997 Ford Explorer Eddie Bauer 4.0L Cuts out VIN: 1FMDU34E3V
P0174: system lean. idles& runs good except for what sounds like backfire in intake manifold. fuel trims whent from +23 to +5 at idle after intake manifold gaskets replaced. any problems with cracks in plastic in. manifolds? still sounds like vac. leak on tipin. fuel trims +5...
November 24, 2009