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P0174 Diagnostic Trouble Code Discussion for August 2012

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2003 GMC Sierra 1500 SLE 4.3L Poor Idle Quality, Hesitation, Cuts out, Misfire VIN: 1GTEC14X43
P0174: Fuel Trim System Lean (Bank 2). ... plugs,cap,rotor,wires,fuel regulator. cuts out when flooring in park. will not accelerate over 40 mph. poor idle. still get p0101. Replaced maf no change.
August 14, 2012
2000 Chevrolet Express 3500 LS 5.7L Poor Idle Quality, MIL Lamp on VIN: 1GBJG31R3Y
P0174: Fuel Trim System Lean (Bank 2). I have a problem, I am not sure what. Symptom was vehicle idling rough at times. Code was set for lean bank 2. I watched the scanner, and thought this was easy. The voltage on Bank 2 Sensor 1 would jump intermittently to 4 millivolts, and then back up to norma...
August 16, 2012
2000 Chevrolet Express 3500 LS 5.7L Poor Idle Quality, MIL Lamp on VIN: 1GBJG31R3Y
P0174: Fuel Trim System Lean (Bank 2). I have a problem, I am not sure what. Symptom was vehicle idling rough at times. Code was set for lean bank 2. I watched the scanner, and thought this was easy. The voltage on Bank 2 Sensor 1 would jump intermittently to 4 millivolts, and then back up to norma...
August 18, 2012
2001 BMW 740i 4.4L MIL Lamp on VIN: WBAGG834X1
P0174: System too lean bank 2. I have smoked the system and found 2 leaks one from the breather valve that has the brake booster hose on it and the o-ring for the cam shaft sensor. I replaced both and both long term fuel trims go up past 20. I smoke tested after replacing the valve and the ...
August 21, 2012
2006 Jeep Commander (Truck) 3.7L MIL Lamp on VIN: 1J8HG48K46
P0174: Bank 2 lean. ... codes listed above 2 weeks ago. Basically long story short we found out alot previous repair history on this vehicle that the customer did not up front tell us of course.. It's throwing p0171 and p0174 codes- fuel trims a...
August 28, 2012
2004 Mazda MPV ES 3.0L MIL Lamp on
P0174: Adaptive Fuel Trim Too Lean (Bank 2). I replaced bank 2 oxygen sensor. That was the first code it came in with. Since then after a few days, it came bank with a bank 1 and 2 lean. Both primary oxygen senors show very lean at idle, as soon as you raise the idle,they begin to respond more normally. ...
August 29, 2012
2001 Mercury Sable LS Premium 3.0L MIL Lamp on VIN: 1MEFM55S51
P0174: System lean Bank 2. This one came to us with these lovely codes that no one else could fix and apparently not me either. I usually have pretty good luck with these on a Ford. Anyway the only problem is the lights, the car runs fine. Idle may be a bit on the high side cold (1400 a...
August 29, 2012
2006 Jeep Commander (Truck) 3.7L MIL Lamp on VIN: 1J8HG48K46
P0174: Bank 2 lean. ... codes listed above 2 weeks ago. Basically long story short we found out alot previous repair history on this vehicle that the customer did not up front tell us of course.. It's throwing p0171 and p0174 codes- fuel trims a...
August 30, 2012
2003 GMC Sierra 1500 SLE 4.3L Poor Idle Quality, Hesitation, Cuts out, Misfire VIN: 1GTEC14X43
P0174: Fuel Trim System Lean (Bank 2). replaced cmp, new plugs,cap,rotor,wires,fuel regulator. cuts out when flooring in park. will not accelerate over 40 mph. poor idle. still get p0101. Replaced maf no change.
August 14, 2012
2000 Chevrolet Express 3500 LS 5.7L Poor Idle Quality, MIL Lamp on VIN: 1GBJG31R3Y
P0174: Fuel Trim System Lean (Bank 2). I have a problem, I am not sure what. Symptom was vehicle idling rough at times. Code was set for lean bank 2. I watched the scanner, and thought this was easy. The voltage on Bank 2 Sensor 1 would jump intermittently to 4 millivolts, and then back up to norma...
August 16, 2012
2000 Chevrolet Express 3500 LS 5.7L Poor Idle Quality, MIL Lamp on VIN: 1GBJG31R3Y
P0174: Fuel Trim System Lean (Bank 2). I have a problem, I am not sure what. Symptom was vehicle idling rough at times. Code was set for lean bank 2. I watched the scanner, and thought this was easy. The voltage on Bank 2 Sensor 1 would jump intermittently to 4 millivolts, and then back up to norma...
August 18, 2012
2001 BMW 740i 4.4L MIL Lamp on VIN: WBAGG834X1
P0174: System too lean bank 2. I have smoked the system and found 2 leaks one from the breather valve that has the brake booster hose on it and the o-ring for the cam shaft sensor. I replaced both and both long term fuel trims go up past 20. I smoke tested after replacing the valve and the ...
August 21, 2012
2006 Jeep Commander (Truck) 3.7L MIL Lamp on VIN: 1J8HG48K46
P0174: Bank 2 lean. ... This Jeep came in with both of the codes listed above 2 weeks ago. Basically long story short we found out alot previous repair history on this vehicle that the customer did not up front tell us of course.. It's throwing p0171 and p0174 codes- fuel trims a...
August 28, 2012
2004 Mazda MPV ES 3.0L MIL Lamp on
P0174: Adaptive Fuel Trim Too Lean (Bank 2). I replaced bank 2 oxygen sensor. That was the first code it came in with. Since then after a few days, it came bank with a bank 1 and 2 lean. Both primary oxygen senors show very lean at idle, as soon as you raise the idle,they begin to respond more normally. ...
August 29, 2012
2001 Mercury Sable LS Premium 3.0L MIL Lamp on VIN: 1MEFM55S51
P0174: System lean Bank 2. This one came to us with these lovely codes that no one else could fix and apparently not me either. I usually have pretty good luck with these on a Ford. Anyway the only problem is the lights, the car runs fine. Idle may be a bit on the high side cold (1400 a...
August 29, 2012
2006 Jeep Commander (Truck) 3.7L MIL Lamp on VIN: 1J8HG48K46
P0174: Bank 2 lean. ... This Jeep came in with both of the codes listed above 2 weeks ago. Basically long story short we found out alot previous repair history on this vehicle that the customer did not up front tell us of course.. It's throwing p0171 and p0174 codes- fuel trims a...
August 30, 2012