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P0174 Diagnostic Trouble Code Discussion for July 2010

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2000 Jaguar XKR 4.0L MIL Lamp on VIN: SAJJA41B8Y
P0174: B bank combustion to lean. Car was at another shop and They replaced MAF, O2's Fuel Pressure regulator and code keeps coming back. Found hose pulled off of MAP sensor. Replaced and cleared codes Mil light not back on But these codes are showing up as pending. No vac leaks. Fuel pressure...
July 02, 2010
1998 Chevrolet Express 2500 4.3L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1GCFG25W51
P0174: Fuel Trim System Lean (Bank 2). ... running, it back fires on accel, no misfire codes. It cuts out and runs poor until it goes into closed loop. Then it runs fine. Codes came on during closed loop= P0171 & P0174. Engine up to temp and driving around 25mph. Rear O2 not switching to good, ...
July 05, 2010
2005 Chevrolet Silverado 2500 HD 6.0L Poor Idle Quality, MIL Lamp on VIN: 1GCHC23U55
P0174: Fuel Trim System Lean (Bank 2). Hi All This vehicle is low miles but well used. The lean codes when cleared return within just a couple of minutes. When testing with the Tech 2, after resetting the fuel trim, the short term jumps up to 10-15 and the long term can be observed going up to max ...
July 07, 2010
1996 Chevrolet C1500 Suburban 5.7L MIL Lamp on VIN: 1GNFK16R0T
P0174: Fuel Trim System Lean (Bank 2). Vehicle came to my shop with 2 lean codes. I clear codes take on a 5 mile road test and right back soon. I have tried to clear the fuel trim and I can get it to go to sero. when i clear it goes to 128. Is that were it usualy starts? I recored freeze frame data...
July 12, 2010
1996 Ford F-250 XLT 7.5L MIL Lamp on VIN: 1FTHX26G8T
P0174: Bank 2 Too Lean. I'm getting lean codes P0171 and P0174. Also a P0153 for B2S1 O2 Sensor Slow Response. O2 Sensors are lazy, but switching. Long Term Fuel Trims are about 0-5% at idle and heavy acceleration, but at light acceleration and cruise, they jump up to 15-20%. I disco...
July 12, 2010
2001 Oldsmobile Aurora 4.0L Misfire VIN: 1G3GS64C31
P0174: Fuel Trim System Lean (Bank 2). Car came in shop with ses on, has po171-po174 lean bank 1-2. check fuel pressure within spec, (42) psi althogh a little low for me. Monitored fuel trim and ho2s, fuel trim at the time of failure was 20. max spec is 23. check ho2s both switcheing 200-800 mv. re...
July 15, 2010
2001 Ford F-150 Lariat 5.4L MIL Lamp on, power loss VIN: 1FTRX08L51
P0174: lean bank 2. calling ford experts. i have a headache ford here. my question is, what exactly is the fuel pressure supposed to be? every source i can find says that it is supposed to be 30-45, but the way it behaves at that range, and the way it behaves now, indicates that...
July 29, 2010
2004 Hyundai Sonata LX 2.7L MIL Lamp on VIN: KMHWF35H04
P0174: Fuel System Too Lean (Bank 2). Good afternoon guys. This car came to me today after being in 2 other shops one replaced the Throttle body, the other changed the o2 and cleaned fuel injectors. Vehicle continues to have lean condition on bank 2 only! Fuel pressure is in spec. o2 sensors are ...
July 30, 2010
2000 Jaguar XKR 4.0L MIL Lamp on VIN: SAJJA41B8Y
P0174: B bank combustion to lean. Car was at another shop and They replaced MAF, O2's Fuel Pressure regulator and code keeps coming back. Found hose pulled off of MAP sensor. Replaced and cleared codes Mil light not back on But these codes are showing up as pending. No vac leaks. Fuel pressure...
July 02, 2010
1998 Chevrolet Express 2500 4.3L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1GCFG25W51
P0174: Fuel Trim System Lean (Bank 2). ... running, it back fires on accel, no misfire codes. It cuts out and runs poor until it goes into closed loop. Then it runs fine. Codes came on during closed loop= P0171 & P0174. Engine up to temp and driving around 25mph. Rear O2 not switching to good, ...
July 05, 2010
2005 Chevrolet Silverado 2500 HD 6.0L Poor Idle Quality, MIL Lamp on VIN: 1GCHC23U55
P0174: Fuel Trim System Lean (Bank 2). Hi All This vehicle is low miles but well used. The lean codes when cleared return within just a couple of minutes. When testing with the Tech 2, after resetting the fuel trim, the short term jumps up to 10-15 and the long term can be observed going up to max ...
July 07, 2010
1996 Chevrolet C1500 Suburban 5.7L MIL Lamp on VIN: 1GNFK16R0T
P0174: Fuel Trim System Lean (Bank 2). Vehicle came to my shop with 2 lean codes. I clear codes take on a 5 mile road test and right back soon. I have tried to clear the fuel trim and I can get it to go to sero. when i clear it goes to 128. Is that were it usualy starts? I recored freeze frame data...
July 12, 2010
1996 Ford F-250 XLT 7.5L MIL Lamp on VIN: 1FTHX26G8T
P0174: Bank 2 Too Lean. I'm getting lean codes P0171 and P0174. Also a P0153 for B2S1 O2 Sensor Slow Response. O2 Sensors are lazy, but switching. Long Term Fuel Trims are about 0-5% at idle and heavy acceleration, but at light acceleration and cruise, they jump up to 15-20%. I disco...
July 12, 2010
2001 Oldsmobile Aurora 4.0L Misfire VIN: 1G3GS64C31
P0174: Fuel Trim System Lean (Bank 2). Car came in shop with ses on, has po171-po174 lean bank 1-2. check fuel pressure within spec, (42) psi althogh a little low for me. Monitored fuel trim and ho2s, fuel trim at the time of failure was 20. max spec is 23. check ho2s both switcheing 200-800 mv. re...
July 15, 2010
2001 Ford F-150 Lariat 5.4L MIL Lamp on, power loss VIN: 1FTRX08L51
P0174: lean bank 2. calling ford experts. i have a headache ford here. my question is, what exactly is the fuel pressure supposed to be? every source i can find says that it is supposed to be 30-45, but the way it behaves at that range, and the way it behaves now, indicates that...
July 29, 2010
2004 Hyundai Sonata LX 2.7L MIL Lamp on VIN: KMHWF35H04
P0174: Fuel System Too Lean (Bank 2). Good afternoon guys. This car came to me today after being in 2 other shops one replaced the Throttle body, the other changed the o2 and cleaned fuel injectors. Vehicle continues to have lean condition on bank 2 only! Fuel pressure is in spec. o2 sensors are ...
July 30, 2010