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P0174 Diagnostic Trouble Code Discussion for February 2016

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2012 GMC Sierra 3500 HD SLE 6.0L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GT423CG8C
P0174: too lean bank 2. ... greatly appreciated on this one. Customer brought truck to us after they had replaced the engine themselves and now it runs poorly. customer stated that after the USED engine was installed all was good other then lean codes p0171 and p0174 setting. after s...
February 05, 2016
2012 GMC Sierra 3500 HD SLE 6.0L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1GT423CG8C
P0174: too lean bank 2. ... greatly appreciated on this one. Customer brought truck to us after they had replaced the engine themselves and now it runs poorly. customer stated that after the USED engine was installed all was good other then lean codes p0171 and p0174 setting. after s...
February 08, 2016
1997 Ford F-150 XL 4.2L Poor Idle Quality, MIL Lamp on VIN: 1FTDX1721V
P0174: system too lean bank 2. Please help, I'm dying here. This vehicle arrived with a PO174 and customer reports MIL has been on for over a year. Test drove and confirmed MIL; noted sputter on take-off, possibly lean-out misfire. Looking at data, bank #2 trims are very high; 25% LT and 8%...
February 09, 2016
1997 Chevrolet C1500 Suburban 5.7L MIL Lamp on VIN: 3GNEC16R5V
P0174: Fuel Trim System Lean (Bank 2). Hi to all tech, five month ago replaced the spider injectors with the fuel pressure for open injector, the fuel pump was not holding pressure for the prime KOEO but good enough to keep the suburban running, now I had replaced the fuel pump and the pressure wit...
February 11, 2016
1997 Ford F-150 XL 4.2L Poor Idle Quality, MIL Lamp on VIN: 1FTDX1721V
P0174: system too lean bank 2. Please help, I'm dying here. This vehicle arrived with a PO174 and customer reports MIL has been on for over a year. Test drove and confirmed MIL; noted sputter on take-off, possibly lean-out misfire. Looking at data, bank #2 trims are very high; 25% LT and 8%...
February 12, 2016
2001 Mazda MPV DX 2.5L MIL Lamp on VIN: JM3LW28YX1
P0174: Adaptive Fuel Trim Too Lean (Bank 2). This vehicle came in with severe misfire condition. Found secondary ignition issue and replaced coil pack, wires and plugs. This eliminated the misfire condition but I always check for lean running when coils fail. Sure enough, both banks running very lean and...
February 12, 2016
1998 Cadillac Seville SLS 4.6L EGR Decel test VIN: 1G6KS54Y2W
P0174: Fuel Trim System Lean (Bank 2). Hello Fellow Techs, We received this low mileage Caddy with a failed Indiana OBD 2 test. Only code on form was P0171 (Bank 1 lean), We scanned codes and found 6 codes, engine light on and all monitors run. We started with fuel pressure 40 psi at idle and smok...
February 25, 2016
2008 GMC Acadia SLT 3.6L Hesitation, Cuts out VIN: 1GKEV33778
P0174: System to lean bank2. OK,Here the deal this one is killing me!!! The customer is crying.. For other shops have know ideas,including customer friend that works at dealership. I will make this as short as possible with as much info as possible.Came in with codes listed.Opened air cle...
February 27, 2016
2006 Pontiac G6 3.5L MIL Lamp on VIN: 1G2ZG55826
P0174: Fuel System Lean (Bank 2). ... light on and lean on both banks. I checked the fuel pressure and the fuel delivery and found no problem. I also checked the fuel quality with no problems found. Next I smoke tested the intake both cold and at operating temperature and both test passed. Nex...
February 29, 2016