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P0174 Diagnostic Trouble Code Discussion for December 2011

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2002 Lincoln LS 3.0L Poor Idle Quality, Stall VIN: 1LNHM86S22
P0174: Lean bank two. We have a very intermittant idle issue with this car. In the morning it is driven app. 15 miles then while idleing to drop kids at school it will stumble once about every five minutes and about once a week when it does this it will die and start right back up....
December 01, 2011
2003 Chevrolet Suburban 2500 LS 6.0L MIL Lamp on VIN: 3GNGC26U53
P0174: Fuel Trim System Lean (Bank 2). At idle the long term trim is 0 to 2. The O2 sensors cycle rich and lean correctly. With my Genisys reading long term trim on a test drive, the LT trim goes up to 25 on both banks after accelerating for 4 seconds. It goes back down when you stop accelerating t...
December 06, 2011
2002 Chevrolet Silverado 1500 4.8L Cuts out, Misfire, MIL Lamp on VIN: 1GCEC19V02
P0174: Fuel Trim System Lean (Bank 2). we have changed both o2 sensors, mass air flow, intake manifold gasket, fuel filter, injectors and fuel pressure regulator.
December 07, 2011
1997 Chevrolet C1500 Cheyenne 5.7L MIL Lamp on VIN: 1GCEC19R7V
P0174: Fuel Trim System Lean (Bank 2). I'm hoping someone can shed some light on the problem I am having with this truck. I believe the problem is fuel pressure related. First off,I have checked thoroughly for vacuum leaks and found none. The MAF has been replaced with a known good part with no imp...
December 08, 2011
2003 Land Rover Discovery SE 4.6L MIL Lamp on VIN: SALTY16413
P0174: Bank 2 Lean. Normally, these faults are a sure sign of a failed MAF. However, the problem has re-occurred after a while after multiple MAF replacements. Through all of this, the truck runs and drives fine, but we can't seem to get the faults to go away. Anyone else run...
December 12, 2011
2002 BMW 325Ci 2.5L MIL Lamp on VIN: WBABN33442
P0174: lean. Good day, this engine is running lean on both banks off idle. At idle, stft is ranging from -2% - +2% on both banks. ltft is at 11.7% both banks. At cruising speeds, stft ranges from 10%-18% both banks. ltft has never changed and again is at 11.7%. The MAF, sn...
December 14, 2011
1999 Chevrolet C2500 7.4L Poor Idle Quality, Poor Fuel Economy VIN: 1GCGC23J0X
P0174: Fuel Trim System Lean (Bank 2). i dont use the truck much when i do i will treavel about6 miles to home and when i get 1mile from home at stops it will start to flood out and black smoke out the tail pipe and want to die. i have even had the fuel regulator vacume hose disconected to see if i...
December 15, 2011
2003 Ford Explorer Eddie Bauer 4.6L MIL Lamp on VIN: 1FMZU74WX3
P0174: Lean bank 2 long term around 21. ... keeps setting a presistent p0171 and p0174 the fuel trims are both positive bank one around +25 bank 2 is around +21. Both get worse when engine is reved up. Bank 1 o2 was slow so I replaced it. I have smoked it several times and sprayed no smoked and no c...
December 29, 2011