Join Now
International Automotive Technicians Network

P0174 Diagnostic Trouble Code Discussion for January 2015

Fuel System Lean (Bank 2)


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2005 BMW X3 3.0i 3.0L MIL Lamp on VIN: WBXPA93435
P0174: lean bank 2. codes p0171, p0174 long term trim numbers run about 15 at idle in park, a little lower in gear. near 0 on road. smoke test showed leakage at runner control valve assy so I replaced that and cleared codes. smoke test better but trim is the same. crank venting s...
January 14, 2015
2002 Mercury Mountaineer 4.6L No Start, MIL Lamp on VIN: 4M2ZU86W62
P0174: Lean Bank Two. Vehicle requires repeated cranking to start. Fuel pressure is slow to rise. Once running, it performs well in all conditions but throws codes for lean condition. I wanted to check for regulator or pressure sensor as Alldata suggests. I don't see either,believe...
January 25, 2015
1998 Ford Explorer Eddie Bauer 4.0L Poor Idle Quality VIN: 1FMZU34E6W
P0174: . ... with a classic upper intake gasket vacuum leak. P0171 & 174 that's not the issue. It also has a very dry rotted air intake tube; no rot holes yet but is not in good shape at all. Hate to ship it like that. The 1998 tube is discontinued; Dorman doesn'...
January 27, 2015
1998 GMC C1500 Sierra SL 4.3L MIL Lamp on VIN: 1GTEC14W0W
P0174: Fuel Trim System Lean (Bank 2). Hoping you guys and can help me out here, I'm at a loss. Sorry in advance for this being so long, but I wanted to be thorough. Truck originally came in with P0172,P0175 Both Banks Rich. Testing found FPR leaking, after replacement fuel pressure held but was 80...
January 27, 2015
1998 Ford Explorer Eddie Bauer 4.0L Poor Idle Quality VIN: 1FMZU34E6W
P0174: . ... with a classic upper intake gasket vacuum leak. P0171 & 174 that's not the issue. It also has a very dry rotted air intake tube; no rot holes yet but is not in good shape at all. Hate to ship it like that. The 1998 tube is discontinued; Dorman doesn'...
January 29, 2015