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P0174 Diagnostic Trouble Code Discussion for February 2008

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2001 Ford E-250 Econoline 4.2L Poor Idle Quality VIN: 1FTNE24291
P0174: Bank 2 Lean. Vehicle came in with the codes PO171 & 174, both banks lean, I found & repaired a vaccum leak @ the PCV hose. I then test drove the vehicle for a short distance & the codes did not reappear but I still had a rough idle. Suspecting a hung EGR valve...
February 01, 2008
1996 Ford Windstar GL 3.8L Poor Idle Quality, Surge, Misfire VIN: 2FMDA5142T
P0174: lead. starts and runs fine. after its hot and sits for about 10 min restart and it is running rough. it acts light heavy miss. hit the gas and it will clear up after a few seconds. fuel pressure is good, no injector leaks, good compressiion. if it runs ok after a so...
February 02, 2008
1998 Ford Explorer Sport 4.0L MIL Lamp on, po171 po174 VIN: 1FMYU22E0W
P0174: system lean bank 2. hello this is the explorer from hell. Came in with po171 & po174, smoked and found intake gaskets leaking. Replaced upper and lower plenum gaskets. Problem still persists. maf reading is okay. At idle shorterm=3% longterm=2%. of idle and while driving shor...
February 02, 2008
2000 BMW 750iL 5.4L MIL Lamp on VIN: WBAGJ03464
P0174: fuel trim bank 2 system lean or.... We have managed to get this car through NYS inspection, but the check engine light keeps coming on. We have not been able to reduce the fuel trim to within specifications. The car runs fine, idles smoothly. It seems to take at least 3 drive cycles for the ligh...
February 05, 2008
2001 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTZX17271
P0174: System to Lean Bank 2. All Ford Drivability Guys I have a lean condition with this F-150. I have checked for vacuum leaks, replaced the fuel filter, checked fuel pressure (35)psi. When I looked at the PID I saw this occured with engine RPM at 1054, Calc Load 44.0, Coolant Temp 172, ...
February 05, 2008
2000 BMW 750iL 5.4L MIL Lamp on VIN: WBAGJ03464
P0174: fuel trim bank 2 system lean or.... We have managed to get this car through NYS inspection, but the check engine light keeps coming on. We have not been able to reduce the fuel trim to within specifications. The car runs fine, idles smoothly. It seems to take at least 3 drive cycles for the ligh...
February 06, 2008
2000 Ford Windstar SE 3.8L Stall VIN: 2FMZA524XY
P0174: . hello to all, i need some assistance on a 2000 ford windstat 3.8L trying to locate the lower intake manfold the one off the above vehicle is leaking from the area where the runner shaft is mounted the local ford dealer told me it is on national back order . if...
February 06, 2008
1998 Ford Ranger Splash 4.0L MIL Lamp on VIN: 1FTZR15X8W
P0174: lean. we have had several 1998-2000 come in with same codes and have cleaned maf , checked fuel pressure , egr , and still come up with same codes some in days or a month later
February 12, 2008
2001 Nissan Sentra GXE 1.8L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 3N1CB51D41
P0174: Fuel Trim Lean (Bank 2). absolute pressure and atmospheric pressure both read 3.94v and never change even at wide open throttle cant seem to find the info i want
February 13, 2008
2002 Ford Windstar LX 3.8L MIL Lamp on VIN: 2FMZA50442
P0174: both banks lean. ... coming on. We have replaced both intake manifold gaskets. Light came back on. Smoked intake, replaced PCV valve, light came back on. Allways the same codes, Po171 and P0174. Any ideas?
February 14, 2008
2005 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAHP53U15
P0174: fuel system lean bank 2. We tested fuel pressure at the line that goes into rail show only 28psi when running.Tested pressure at the pump output before the filter 55psi and have a same reading after the filter.Disconnect the line that goes to rail pump output 55psi key on engine off.T...
February 18, 2008
2005 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAHP53U15
P0174: fuel system lean bank 2. We tested fuel pressure at the line that goes into rail show only 28psi when running.Tested pressure at the pump output before the filter 55psi and have a same reading after the filter.Disconnect the line that goes to rail pump output 55psi key on engine off.T...
February 19, 2008
2000 Ford Explorer XLS 4.0L MIL Lamp on VIN: 1FMZUTTE51
P0174: lean bank 2. This vehicle has been back a few times. it has a lean code on bank 1 and 2. When i monitor pid data everything is normal idling and when driving. I have monitored fuel pressure and smoke tested for vacuum leaks. I am kind of embarrased because this shouldnt be...
February 21, 2008
2002 Ford Windstar LX 3.8L MIL Lamp on VIN: 2FMZA51432
P0174: lean. Trims are maxed out and we found vac leak only at runner shaft seal on front of lower intake manifold. My question is does any one know if the comlete lower must be replaced or can you purchase just the seal for the runner shaft? Thanks for any help you may p...
February 22, 2008
1996 Lincoln Continental Anniversary 4.6L MIL Lamp on VIN: 1LNLM97V2T
P0174: . Just need to know if anyone out there has replaced the lower intake manifold control shaft seals on one of these engines. I'm told the manifolds are no longer available through Ford. My dealer did locate 7 left side ones at $395.00 each from their vintage sour...
February 26, 2008
2000 Ford Taurus SE 3.0L MIL Lamp on VIN: 1FAFP58S3Y
P0174: system lean bank 2. first visit. customer arrived with c.e.l on no driveability sypmtoms. retrieved dtc's po174 and po171. lean codes. smoke test found bad pcv hose assembly. replaced. noticed fuel filter old, replace for maintenance reasons being it was related. cleaned mass air...
February 28, 2008