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P0174 Diagnostic Trouble Code Discussion for March 2010

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
1996 Ford F-150 XLT 4.9L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1FTEF14Y1T
P0174: system lean bank 2. i have freeze frame info when problem occured with me. rpm-1707,coolant temp. 174f, vehicle spd.- 40mph, calc. engine load 20.8%, fuel system b1- closed, fuel system status b2- disabled, ltft b2- 25%, ltft b1- 25%, stft b1- 4.7%, stft b2- 13.3%. tested vehicle...
March 03, 2010
2003 Jaguar S-Type 4.2L MIL Lamp on VIN: SAJEA01U13
P0174: Both Banks Lean. These lean codes come back in about 10 miles of driving. The intake plenum gaskets were replaced by another shop before the customer brought the car to us. A new MAF sensor was installed with no change. Smoke testing didn't reveal any vacuum leaks. The car run...
March 05, 2010
1999 Chevrolet K1500 Suburban 5.7L MIL Lamp on VIN: 3GNFK16R4X
P0174: Fuel Trim System Lean (Bank 2). There were no codes before we changed the intake gaskets. The long term fuel trim goes to 25% on both banks within 5 miles of driving. Plugs are clean and gas readings show the system is lean. We have done the usual, smoked the intake-no leaks, fuel 10% alcoho...
March 11, 2010
1999 Ford E-150 Econoline 5.4L Detonation and slugg VIN: 1FTPE24L9X
P0174: Bank2 too lean. ... and very sluggish under load. Upon test drive I found MIL on with a P0174 for bank 2 too lean and lots and lots of detonation and random misfire feel just like being too lean. Diagnosed further and found leaking PCV elbow and cracked PCV hose. Fuel trims a...
March 11, 2010
2000 Ford E-350 Econoline 6.8L MIL Lamp on VIN: 1FDWE35S9Y
P0174: system too lean bank 2. ... truck belongs to local school district. These guys do some of their own maintainence if it is not too difficult for them. It came in on a hook to us because they attempted to replace their spark plugs and when they got to cyl 2, the threads in the head sep...
March 12, 2010
2000 Ford E-350 Econoline 6.8L MIL Lamp on VIN: 1FDWE35S9Y
P0174: system too lean bank 2. ... truck belongs to local school district. These guys do some of their own maintainence if it is not too difficult for them. It came in on a hook to us because they attempted to replace their spark plugs and when they got to cyl 2, the threads in the head sep...
March 16, 2010
2001 GMC Savana 2500 5.0L MIL Lamp on VIN: 1G1FG25M91
P0174: Fuel Trim System Lean (Bank 2). ... cannot figure this one out! Van came in with a p0300, p0171, p0174. smoked upper intake for a vacuum leak, found and , replaced plenum gasket. Resmoked intake and no leaks are present, although there is small leak where air tube meets throttle body/ oring ...
March 22, 2010
1996 Lincoln Continental Anniversary 4.6L MIL Lamp on VIN: 1LNLM97V7T
P0174: system lean bank 2. ... one!We have serviced this vehicle for years-maintanence has been kept up on runs absolutely smooth & quiet & vehicle is clean-feel this is important because even my local Ford dealers hear the year\model & groan.They told they me would not even...
March 25, 2010
1996 Lincoln Continental Anniversary 4.6L MIL Lamp on VIN: 1LNLM97V7T
P0174: system lean bank 2. ... one!We have serviced this vehicle for years-maintanence has been kept up on runs absolutely smooth & quiet & vehicle is clean-feel this is important because even my local Ford dealers hear the year\model & groan.They told they me would not even...
March 27, 2010
2004 Mazda 6 S 3.0L MIL Lamp on VIN: 1YVFP82D1P
P0174: Adaptive Fuel Trim Too Lean (Bank 2). ... our shop for 3 weeks now and with no problem solved car orignially came in and codes presensted p0171 and p0174 fuel trims were at max 20% long term both banks suspected mass air flow sensor cleaned and no change to fuel trims mass air sensor replaced with...
March 28, 2010
2001 Jaguar XJ8 4.0L MIL Lamp on, Restricted Performnc VIN: SAJDA14C21
P0174: Bank2 Lean. Hello everyone. This car originally came in with lean codes and evap small and very small codes. I checked fuel pressure at the time, 30psi/idle and 40psi/wot. LTFT and STFT were all 20-22%. I replaced the fuel pump; now fuel pressure is 36psi/idle and 44psi/w...
March 31, 2010
1996 Ford F-150 XLT 4.9L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1FTEF14Y1T
P0174: system lean bank 2. i have freeze frame info when problem occured with me. rpm-1707,coolant temp. 174f, vehicle spd.- 40mph, calc. engine load 20.8%, fuel system b1- closed, fuel system status b2- disabled, ltft b2- 25%, ltft b1- 25%, stft b1- 4.7%, stft b2- 13.3%. tested vehicle...
March 03, 2010
2003 Jaguar S-Type 4.2L MIL Lamp on VIN: SAJEA01U13
P0174: Both Banks Lean. These lean codes come back in about 10 miles of driving. The intake plenum gaskets were replaced by another shop before the customer brought the car to us. A new MAF sensor was installed with no change. Smoke testing didn't reveal any vacuum leaks. The car run...
March 05, 2010
1999 Chevrolet K1500 Suburban 5.7L MIL Lamp on VIN: 3GNFK16R4X
P0174: Fuel Trim System Lean (Bank 2). There were no codes before we changed the intake gaskets. The long term fuel trim goes to 25% on both banks within 5 miles of driving. Plugs are clean and gas readings show the system is lean. We have done the usual, smoked the intake-no leaks, fuel 10% alcoho...
March 11, 2010
1999 Ford E-150 Econoline 5.4L Detonation and slugg VIN: 1FTPE24L9X
P0174: Bank2 too lean. ... and very sluggish under load. Upon test drive I found MIL on with a P0174 for bank 2 too lean and lots and lots of detonation and random misfire feel just like being too lean. Diagnosed further and found leaking PCV elbow and cracked PCV hose. Fuel trims a...
March 11, 2010
2000 Ford E-350 Econoline 6.8L MIL Lamp on VIN: 1FDWE35S9Y
P0174: system too lean bank 2. ... truck belongs to local school district. These guys do some of their own maintainence if it is not too difficult for them. It came in on a hook to us because they attempted to replace their spark plugs and when they got to cyl 2, the threads in the head sep...
March 12, 2010
2000 Ford E-350 Econoline 6.8L MIL Lamp on VIN: 1FDWE35S9Y
P0174: system too lean bank 2. ... truck belongs to local school district. These guys do some of their own maintainence if it is not too difficult for them. It came in on a hook to us because they attempted to replace their spark plugs and when they got to cyl 2, the threads in the head sep...
March 16, 2010
2001 GMC Savana 2500 5.0L MIL Lamp on VIN: 1G1FG25M91
P0174: Fuel Trim System Lean (Bank 2). ... cannot figure this one out! Van came in with a p0300, p0171, p0174. smoked upper intake for a vacuum leak, found and , replaced plenum gasket. Resmoked intake and no leaks are present, although there is small leak where air tube meets throttle body/ oring ...
March 22, 2010
1996 Lincoln Continental Anniversary 4.6L MIL Lamp on VIN: 1LNLM97V7T
P0174: system lean bank 2. ... one!We have serviced this vehicle for years-maintanence has been kept up on runs absolutely smooth & quiet & vehicle is clean-feel this is important because even my local Ford dealers hear the year\model & groan.They told they me would not even...
March 25, 2010
1996 Lincoln Continental Anniversary 4.6L MIL Lamp on VIN: 1LNLM97V7T
P0174: system lean bank 2. ... one!We have serviced this vehicle for years-maintanence has been kept up on runs absolutely smooth & quiet & vehicle is clean-feel this is important because even my local Ford dealers hear the year\model & groan.They told they me would not even...
March 27, 2010
2004 Mazda 6 S 3.0L MIL Lamp on VIN: 1YVFP82D1P
P0174: Adaptive Fuel Trim Too Lean (Bank 2). ... our shop for 3 weeks now and with no problem solved car orignially came in and codes presensted p0171 and p0174 fuel trims were at max 20% long term both banks suspected mass air flow sensor cleaned and no change to fuel trims mass air sensor replaced with...
March 28, 2010
2001 Jaguar XJ8 4.0L MIL Lamp on, Restricted Performnc VIN: SAJDA14C21
P0174: Bank2 Lean. Hello everyone. This car originally came in with lean codes and evap small and very small codes. I checked fuel pressure at the time, 30psi/idle and 40psi/wot. LTFT and STFT were all 20-22%. I replaced the fuel pump; now fuel pressure is 36psi/idle and 44psi/w...
March 31, 2010