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P0174 Diagnostic Trouble Code Discussion for September 2012

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2005 Ford F-250 Super Duty Lariat 5.4L Poor Fuel Economy, MIL Lamp on VIN: 1FTSW215X5
P0174: system too lean bank 2. customer complains of MIL light on and poor fuel economy. scanner shows both banks too lean codes. Diagnostic steps I have performed so far... -datastream shows both bank LT fuel trims pegged at +30. as soon as you increase the rpm to anything above idle LT t...
September 07, 2012
2004 Mazda 6 S 3.0L Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1YVHP80D84
P0174: Adaptive Fuel Trim Too Lean (Bank 2). ... and flashing. Before i road test, oil was all over engine, check oil dipstick, no oil regestering. Add 4 quarts of oil, customer said oil cap was left off after oil change was done at a quick place. Started engine and heard what sounded like the timing cha...
September 10, 2012
2001 Ford Mustang 3.8L Poor Idle Quality VIN: 1FAFP40441
P0174: System lean. Hi, everyone. I got this mustang two days ago, while we driving, sadenly rpm goes over 2000,at the time more than 3000, look like we loosing control on gas , i mean even playing with gas pedal dos`t make any different , then rpm start come to normal by itself....
September 12, 2012
2000 Lincoln Continental 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM97V8Y
P0174: bank2 lean. Vehicle originally came in running rough with a #3 misfire code. Diagnosis vehicle and replaced #3 injector. Vehicle came back one week later with a code for bank 2 lean. Smoke tested engine and found intake gasket leaking. Replaced intake gasket. Vehicle has ...
September 12, 2012
2005 Audi A8 Quattro L 4.2L MIL Lamp on VIN: WAUML44E55
P0174: lean bank two. ... P0174 lean on both banks,plus P1136 and P1138 also lean codes respectively During smoke test we noticed smoke pouring out of air injection secondary valve(according to Mitchels that's what it is)located on the back of the in...
September 13, 2012
2003 Nissan Pathfinder SE 3.5L MIL Lamp on VIN: JN8DRD9X73
P0174: Fuel Trim Lean (Bank 2). Vehicle came in with p0174 and a hesitation. Checked mass air flow gps at idle 2.2. Checked engine efficiency at full throttle, below 50%. Replaced mass air flow sensor. Gps went to 4.5 turned out mil. No note in oe maf sensor to calibrate. Light came on next ...
September 24, 2012
2002 Chevrolet Silverado 2500 6.0L MIL Lamp on VIN: 1GCHK24U22
P0174: Fuel Trim System Lean (Bank 2). ... lean code cked fuel presure was low 48 psi tested and replaced fule presure reg and filter now I have 59psi code all 3 comes back long trims are at plus 25 checked for vac leak none found did see tsb for P0332 but cant see...
September 26, 2012
2003 Toyota 4Runner SR5 4.0L MIL Lamp on VIN: JTEBU14RX3
P0174: Fuel System Too Lean (Bank 2). ... my bay. customer states that he has been having this problem for about a year now. When these codes first set,another shop installed after market AF sensors. When the codes returned a few months later he took the vehicle to the dealership and they replaced...
September 27, 2012
2004 Ford F-150 Lariat 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTPX12594
P0174: . ... before. Truck came in with misfire on multiple cylinders. Replaced all plugs and coils. Still has misfire t idle. Once you give it gas it smoothes out. smoked the intake and found smll pinholes all over the place in the intake manifold. Pulled the intake t...
September 28, 2012
2005 Ford F-250 Super Duty Lariat 5.4L Poor Fuel Economy, MIL Lamp on VIN: 1FTSW215X5
P0174: system too lean bank 2. customer complains of MIL light on and poor fuel economy. scanner shows both banks too lean codes. Diagnostic steps I have performed so far... -datastream shows both bank LT fuel trims pegged at +30. as soon as you increase the rpm to anything above idle LT t...
September 07, 2012
2004 Mazda 6 S 3.0L Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1YVHP80D84
P0174: Adaptive Fuel Trim Too Lean (Bank 2). Vehicle came in with s.e.s. Light on and flashing. Before i road test, oil was all over engine, check oil dipstick, no oil regestering. Add 4 quarts of oil, customer said oil cap was left off after oil change was done at a quick place. Started engine and heard...
September 10, 2012
2001 Ford Mustang 3.8L Poor Idle Quality VIN: 1FAFP40441
P0174: System lean. Hi, everyone. I got this mustang two days ago, while we driving, sadenly rpm goes over 2000,at the time more than 3000, look like we loosing control on gas , i mean even playing with gas pedal dos`t make any different , then rpm start come to normal by itself....
September 12, 2012
2000 Lincoln Continental 4.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM97V8Y
P0174: bank2 lean. Vehicle originally came in running rough with a #3 misfire code. Diagnosis vehicle and replaced #3 injector. Vehicle came back one week later with a code for bank 2 lean. Smoke tested engine and found intake gasket leaking. Replaced intake gasket. Vehicle has ...
September 12, 2012
2005 Audi A8 Quattro L 4.2L MIL Lamp on VIN: WAUML44E55
P0174: lean bank two. ... 2005 A8 L quatro with P0171 and P0174 lean on both banks,plus P1136 and P1138 also lean codes respectively During smoke test we noticed smoke pouring out of air injection secondary valve(according to Mitchels that's what it is)located on the back of the in...
September 13, 2012
2003 Nissan Pathfinder SE 3.5L MIL Lamp on VIN: JN8DRD9X73
P0174: Fuel Trim Lean (Bank 2). Vehicle came in with p0174 and a hesitation. Checked mass air flow gps at idle 2.2. Checked engine efficiency at full throttle, below 50%. Replaced mass air flow sensor. Gps went to 4.5 turned out mil. No note in oe maf sensor to calibrate. Light came on next ...
September 24, 2012
2002 Chevrolet Silverado 2500 6.0L MIL Lamp on VIN: 1GCHK24U22
P0174: Fuel Trim System Lean (Bank 2). ... lean code cked fuel presure was low 48 psi tested and replaced fule presure reg and filter now I have 59psi code all 3 comes back long trims are at plus 25 checked for vac leak none found did see tsb for P0332 but cant see how that would afect my trims. A...
September 26, 2012
2003 Toyota 4Runner SR5 4.0L MIL Lamp on VIN: JTEBU14RX3
P0174: Fuel System Too Lean (Bank 2). ... my bay. customer states that he has been having this problem for about a year now. When these codes first set,another shop installed after market AF sensors. When the codes returned a few months later he took the vehicle to the dealership and they replaced...
September 27, 2012
2004 Ford F-150 Lariat 5.4L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FTPX12594
P0174: . ... before. Truck came in with misfire on multiple cylinders. Replaced all plugs and coils. Still has misfire t idle. Once you give it gas it smoothes out. smoked the intake and found smll pinholes all over the place in the intake manifold. Pulled the intake t...
September 28, 2012