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P0174 Diagnostic Trouble Code Discussion for March 2013

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2002 BMW 330xi 3.0L MIL Lamp on VIN: WBAEW53492
P0174: bk 2 lean. this is my personal car and is under a restoration period.after replacement of all wear and tear. and usual known "lean" condition issues.i'm still leaning out.after a third smoke test,i am getting smoke from around disa valve and intake manifold.my qu...
March 03, 2013
2005 BMW X3 3.0i 3.0L MIL Lamp on VIN: WBXPA93445
P0174: Bank 2 lean. Customer complaining of oil usage and oil smoke out of tailpipe on start-up. Found no external leaks but ck engine light on with lean codes. I can remove oil filler cap and engine runs rough. I can cover hole up with my hand and has internal vacuum leak and en...
March 04, 2013
1996 Cadillac DeVille Concours 4.6L MIL Lamp on VIN: 1G6KF5294T
P0174: Fuel Trim System Lean (Bank 2). ... out at idle. P0101, P0138, P0140, P0141, P0171, P0174, P0300, P0603, P1406, P1599. The EGR was open at idle and replace the B1S2 O2 sensor. Car no longer dies at idle but resets the P0171 and P0174 with extremely high fuel trims. Smoke tested intake and fo...
March 04, 2013
2004 Lincoln Navigator 5.4L MIL Lamp on VIN: 5LMFU28R64
P0174: Lean bank 2. ... called a Lincoln.The mil is on for the ever so common p0171 and p0174.I smoked the intake to start with and found the EGR valve leaking smoke.Now I know that's common on fords but how much of a leak is too much?The fuel pressure was at 15 psi which is way ...
March 07, 2013
2000 GMC Savana 3500 5.7L MIL Lamp on VIN: 1GTHG35R2Y
P0174: Fuel Trim System Lean (Bank 2). I have lean codes for Bank 1 and Bank 2. Customer says the Van has died on him at times I have checked fuel pressure at filter pump is pushing 90 psi and also checked at regulator and the pressure was a little low at 47 replaced regulator and now pressure is 5...
March 11, 2013
2000 GMC Savana 3500 5.7L MIL Lamp on VIN: 1GTHG35R2Y
P0174: Fuel Trim System Lean (Bank 2). I have lean codes for Bank 1 and Bank 2. Customer says the Van has died on him at times I have checked fuel pressure at filter pump is pushing 90 psi and also checked at regulator and the pressure was a little low at 47 replaced regulator and now pressure is 5...
March 12, 2013
2003 Jaguar XJ8 4.0L Poor Idle Quality, MIL Lamp on VIN: SAJDA14C93
P0174: Too lean bank 2. ... fault code p0171-too lean b1. Smoke tested intake sys for vacuum leaks, found all crankcase ventilation lines were leaking a small amount at connections as well as resonance tube on intake tube was cracking away from intake tube to throttle body. Replaced ...
March 13, 2013
2000 Ford Expedition XLT 5.4L Poor Idle Quality, Hesitation VIN: 1FMPU16L7Y
having code po174 and po156, both relating to bank 2. ive checked for vacuum leaks with a smoke machine, i also removed the elbow behind the iac to look visually for a cracked line. cannot seeem to find any vacuum leaks.
March 21, 2013
2004 Ford F-150 Lariat 5.4L MIL Lamp on VIN: 1FTPW12584
P0174: System Too Lean - Bank 2. ... racking up 50+ hours a week :) I have a strange one here. This truck is setting both rich and lean codes on bank 2. I have freeze frame data when it set the rich code (P0175), here are the details... Closed Loop * 18.4% load * ECT was 86*C * 1378 RPM * 7...
March 22, 2013
1999 Mercury Mountaineer 4.0L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 4M2ZU54E4X
P0174: Bank 2 lean. Hello everyone. Have this mountaineer Im trying to sort out for our alignment man here at the shop. He put all parts listed on it and still not fixed. He says very intermittently while driving at 30 or above the power just drops off and misfires and sputters t...
March 23, 2013
2006 Hyundai Tucson GLS 2.7L Hesitation, Surge, Poor Fuel Economy VIN: KM8JN12D76
P0174: Fuel System Too Lean (Bank 2). We had replaced both upstream oxygen sensor based on proir codes for the heater circuts. Once we had a pair of operational oxygen sensors the they both started throwing lean codes. We then smoke tested for vacuum leaks and found the plenum to have leaks at the...
March 25, 2013
1999 Mercury Mountaineer 4.0L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 4M2ZU54E4X
P0174: Bank 2 lean. Hello everyone. Have this mountaineer Im trying to sort out for our alignment man here at the shop. He put all parts listed on it and still not fixed. He says very intermittently while driving at 30 or above the power just drops off and misfires and sputters t...
March 25, 2013
2002 Ford Windstar SE 3.8L Poor Idle Quality, Misfire VIN: 2FMZA52472
P0174: system too lean bank 2. Vehicle will do different things at different times, The boss drove it first and said it was missing bad under a load, The next day I drive it and it only notice light misfires at idle, Cylinder contribution test shows random cylinder misfires across all cylin...
March 26, 2013
2008 Ford F-450 Super Duty XLT 6.8L Hesitation VIN: 1FDXF47Y48
P0174: lean bank2. truck losses power , fuel pressure drops to 3-10 psi on hard accel using both mech. gauge and ford IDS. traced and checked all wiring from fuel pump too module on frame rail to pcm and inertia switch, all seems good, loaded wires with headlight ok. disconnecte...
March 26, 2013
2000 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality, Misfire VIN: 1FMPU18L4Y
P0174: Bank 2 too lean. Hello all... I have a 2000 expedition 5.4L engine that seems to be possessed. Last week, customer had it towed in for a NO START. Fuel pump was bad. Replaced fuel pump and fuel filter. Upon confirming the fix, noticed a coolant leak on the front of Bank 1 (Pa...
March 27, 2013
2006 Land Rover Range Rover Sport HSE 4.4L MIL Lamp on VIN: SALSF25476
P0174: fuel trim. we have tryed every thing please help it runs great but sets fuel trim codes every time with in 3 miles. or even at idle u can see short term trims at 3 to 5 posi long term bank 1 at 10 to 12 bank2 at 12 to 14 posi please help!!
March 28, 2013
2002 BMW 330xi 3.0L MIL Lamp on VIN: WBAEW53492
P0174: bk 2 lean. this is my personal car and is under a restoration period.after replacement of all wear and tear. and usual known "lean" condition issues.i'm still leaning out.after a third smoke test,i am getting smoke from around disa valve and intake manifold.my qu...
March 03, 2013
2005 BMW X3 3.0i 3.0L MIL Lamp on VIN: WBXPA93445
P0174: Bank 2 lean. Customer complaining of oil usage and oil smoke out of tailpipe on start-up. Found no external leaks but ck engine light on with lean codes. I can remove oil filler cap and engine runs rough. I can cover hole up with my hand and has internal vacuum leak and en...
March 04, 2013
1996 Cadillac DeVille Concours 4.6L MIL Lamp on VIN: 1G6KF5294T
P0174: Fuel Trim System Lean (Bank 2). ... out at idle. P0101, P0138, P0140, P0141, P0171, P0174, P0300, P0603, P1406, P1599. The EGR was open at idle and replace the B1S2 O2 sensor. Car no longer dies at idle but resets the P0171 and P0174 with extremely high fuel trims. Smoke tested intake and fo...
March 04, 2013
2004 Lincoln Navigator 5.4L MIL Lamp on VIN: 5LMFU28R64
P0174: Lean bank 2. ... called a Lincoln.The mil is on for the ever so common p0171 and p0174.I smoked the intake to start with and found the EGR valve leaking smoke.Now I know that's common on fords but how much of a leak is too much?The fuel pressure was at 15 psi which is way ...
March 07, 2013
2000 GMC Savana 3500 5.7L MIL Lamp on VIN: 1GTHG35R2Y
P0174: Fuel Trim System Lean (Bank 2). I have lean codes for Bank 1 and Bank 2. Customer says the Van has died on him at times I have checked fuel pressure at filter pump is pushing 90 psi and also checked at regulator and the pressure was a little low at 47 replaced regulator and now pressure is 5...
March 11, 2013
2000 GMC Savana 3500 5.7L MIL Lamp on VIN: 1GTHG35R2Y
P0174: Fuel Trim System Lean (Bank 2). I have lean codes for Bank 1 and Bank 2. Customer says the Van has died on him at times I have checked fuel pressure at filter pump is pushing 90 psi and also checked at regulator and the pressure was a little low at 47 replaced regulator and now pressure is 5...
March 12, 2013
2003 Jaguar XJ8 4.0L Poor Idle Quality, MIL Lamp on VIN: SAJDA14C93
P0174: Too lean bank 2. ... fault code p0171-too lean b1. Smoke tested intake sys for vacuum leaks, found all crankcase ventilation lines were leaking a small amount at connections as well as resonance tube on intake tube was cracking away from intake tube to throttle body. Replaced ...
March 13, 2013
2000 Ford Expedition XLT 5.4L Poor Idle Quality, Hesitation VIN: 1FMPU16L7Y
having code po174 and po156, both relating to bank 2. ive checked for vacuum leaks with a smoke machine, i also removed the elbow behind the iac to look visually for a cracked line. cannot seeem to find any vacuum leaks.
March 21, 2013
2004 Ford F-150 Lariat 5.4L MIL Lamp on VIN: 1FTPW12584
P0174: System Too Lean - Bank 2. ... racking up 50+ hours a week :) I have a strange one here. This truck is setting both rich and lean codes on bank 2. I have freeze frame data when it set the rich code (P0175), here are the details... Closed Loop * 18.4% load * ECT was 86*C * 1378 RPM * 7...
March 22, 2013
1999 Mercury Mountaineer 4.0L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 4M2ZU54E4X
P0174: Bank 2 lean. Hello everyone. Have this mountaineer Im trying to sort out for our alignment man here at the shop. He put all parts listed on it and still not fixed. He says very intermittently while driving at 30 or above the power just drops off and misfires and sputters t...
March 23, 2013
2006 Hyundai Tucson GLS 2.7L Hesitation, Surge, Poor Fuel Economy VIN: KM8JN12D76
P0174: Fuel System Too Lean (Bank 2). We had replaced both upstream oxygen sensor based on proir codes for the heater circuts. Once we had a pair of operational oxygen sensors the they both started throwing lean codes. We then smoke tested for vacuum leaks and found the plenum to have leaks at the...
March 25, 2013
1999 Mercury Mountaineer 4.0L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 4M2ZU54E4X
P0174: Bank 2 lean. Hello everyone. Have this mountaineer Im trying to sort out for our alignment man here at the shop. He put all parts listed on it and still not fixed. He says very intermittently while driving at 30 or above the power just drops off and misfires and sputters t...
March 25, 2013
2002 Ford Windstar SE 3.8L Poor Idle Quality, Misfire VIN: 2FMZA52472
P0174: system too lean bank 2. Vehicle will do different things at different times, The boss drove it first and said it was missing bad under a load, The next day I drive it and it only notice light misfires at idle, Cylinder contribution test shows random cylinder misfires across all cylin...
March 26, 2013
2008 Ford F-450 Super Duty XLT 6.8L Hesitation VIN: 1FDXF47Y48
P0174: lean bank2. truck losses power , fuel pressure drops to 3-10 psi on hard accel using both mech. gauge and ford IDS. traced and checked all wiring from fuel pump too module on frame rail to pcm and inertia switch, all seems good, loaded wires with headlight ok. disconnecte...
March 26, 2013
2000 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality, Misfire VIN: 1FMPU18L4Y
P0174: Bank 2 too lean. Hello all... I have a 2000 expedition 5.4L engine that seems to be possessed. Last week, customer had it towed in for a NO START. Fuel pump was bad. Replaced fuel pump and fuel filter. Upon confirming the fix, noticed a coolant leak on the front of Bank 1 (Pa...
March 27, 2013
2006 Land Rover Range Rover Sport HSE 4.4L MIL Lamp on VIN: SALSF25476
P0174: fuel trim. we have tryed every thing please help it runs great but sets fuel trim codes every time with in 3 miles. or even at idle u can see short term trims at 3 to 5 posi long term bank 1 at 10 to 12 bank2 at 12 to 14 posi please help!!
March 28, 2013