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P0174 Diagnostic Trouble Code Discussion for February 2011

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2001 Chevrolet Blazer LT 4.3L MIL Lamp on VIN: 1GNDT13W21
P0174: Fuel System Lean (Bank 2). Ok , this truck is a PROBLEM. I have lean codes on both banks. the fuel trims climb instantly when reset (cold 18-20%) once in closed loop 18-20% til long term hit 10-15 then short goes to 2-5. I know this has to be a common component that effect both bank. so...
February 01, 2011
2005 Chevrolet Workhorse 4.8L No Start VIN: 5B4HP42V15
P0174: Fuel trim lean bank 2. Truck has repeatedly left the driver sitting and later restarts, it was towed in during a freezing rain storm in a no start condition.When we went to get the truck out of the lot (on a dry day) it started runs fine data stream looks normal.Have performed wiggl...
February 03, 2011
2005 Ford F-150 XL 4.2L No Start VIN: 1FTRF12265
P0174: syst too lean bnk 2. help! im tossed in the middle of it again! towed in, cranks, no start. multiple dtc's, replaced cam sensor, fuel pressure @ rail is 40-42psi, raw fuel out of exhaust, spark @ all 6 towers on coil. cam/crank show in sync. found 5 volts for the imrc data pid. ha...
February 03, 2011
2006 Nissan Xterra SE 4.0L MIL Lamp on VIN: 5N1AN08WX6
P0174: Fuel Trim Lean (Bank 2). Geeetings to all got this truck in for a code po174 bank 2 lean i smoked tested this with no problems found checked mass air flow sensor that checked good.im leaning towards the air fuel ratio sensor but just wanted to get some feed back from you techs.
February 03, 2011
2003 Jaguar X-Type 2.5L Hesitation, Cuts out VIN: SAJEA51D53
P0174: bank 2 lean. ... time. Veh came in with yhe only complaint of a check eng light. We found p0171 and p0174.Ltft's were both 19.5. We found the original fuel filter, so we replaced it and flushed the injectors with our motorvac system, we smoke tested for vacuum leaks and no...
February 07, 2011
2003 Jaguar X-Type 2.5L Hesitation, Cuts out VIN: SAJEA51D53
P0174: bank 2 lean. ... time. Veh came in with yhe only complaint of a check eng light. We found p0171 and p0174.Ltft's were both 19.5. We found the original fuel filter, so we replaced it and flushed the injectors with our motorvac system, we smoke tested for vacuum leaks and no...
February 08, 2011
1999 Jaguar XJ8 4.0L Excessive Emissions, Hesitation, MIL Lamp on VIN: SAJHD1045X
P0174: System lean bank 2. ... light on P0171 and P0174. Smoke test intake and found PCV hoses leaking and quick disconnect for brake booster. Replace O-ring in quick disconnect and replace both PCV hoses, intake gaskets and install new spark plugs. Recheck for leaks with smoke tester -...
February 09, 2011
1999 Jaguar Vanden Plas 4.0L Excessive Emissions VIN: SAJKX604XX
P0174: System too lean Bank 2. P-0171 & P-0174 appeared after replacing throttle body for P-0121 code with a remanufactured one from BBA Reman (this was not the original one remanned by them but one off the shelf.) Performed BBA's recommended re-learn procedure & thottle body code h...
February 14, 2011
1999 Jaguar Vanden Plas 4.0L Excessive Emissions VIN: SAJKX604XX
P0174: System too lean Bank 2. P-0171 & P-0174 appeared after replacing throttle body for P-0121 code with a remanufactured one from BBA Reman (this was not the original one remanned by them but one off the shelf.) Performed BBA's recommended re-learn procedure & thottle body code h...
February 15, 2011
2000 Ford Explorer XLT 4.0L Cuts out, Stall, MIL Lamp on VIN: 1FMDU72X9Y
P0174: fuel system lean B2. ... this truck, for the last months has been setting codes P0171 & P0174 even after intake gaskets been replaced, and reman Maf sensor, but was not having any other driveability concerns, lately customer complaints that truck stalls when shift to Reverse o...
February 16, 2011
2005 Hyundai Tucson GL 2.0L MIL Lamp on VIN: KM8JNI2D75
P0174: Fuel System Too Lean (Bank 2). setting codes for system lean on both banks. cannot find any vacuum leaks or exhaust leaks. have cleaned MAF sensor. vehicle runs fine at both idle and cruising speed. did some checking in alldata and they said in their many tests to test purge control valve. ...
February 16, 2011
2007 Toyota RAV4 3.5L MIL Lamp on VIN: JTMBK31V77
P0174: Fuel System Too Lean (Bank 2). Lean codes P0171 and P0174 set usually around 170 to 180 degrees during warm up. No vacuum leaks found with smoke machine 2 times. Fuel pressure in spec (44-47 psi). Did diagnositics for codes per All Data. Unable to find problem. Air Flow sensors operate in r...
February 17, 2011
2007 Toyota RAV4 3.5L MIL Lamp on VIN: JTMBK31V77
P0174: Fuel System Too Lean (Bank 2). Lean codes P0171 and P0174 set usually around 170 to 180 degrees during warm up. No vacuum leaks found with smoke machine 2 times. Fuel pressure in spec (44-47 psi). Did diagnositics for codes per All Data. Unable to find problem. Air Flow sensors operate in r...
February 18, 2011
2006 GMC Sierra 1500 HD SLE 6.0L MIL Lamp on VIN: 1GTGK13U56
P0174: Fuel Trim System Lean (Bank 2). customer had code po101 stored so he replaced mass air flow sensor and cleared code. code came back with two other codes. po171 and po 174 left and right banks fuel trim lean. we hooked up scan tool and tried to clear codes. codes would not clear. found air in...
February 28, 2011