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P0174 Diagnostic Trouble Code Discussion for June 2009

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
1999 Ford Ranger XLT 4.0L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 1FTZR15X1X
P0174: system to lean bank 2. I have this 99 ford ranger with the 4.0L in my shop and im having a hard time getting to the bottom of this one. I pull the 2 lean codes for both banks, reset the light and codes do come back after 2 drive cycles. First step I took was replace the fuel filter ...
June 02, 2009
2001 Infiniti QX4 3.5L Excessive Emissions, MIL Lamp on VIN: JNRDR07X11
P0174: Fuel Trim Lean (Bank 2). o2 sensors switch good at cruise. At idle o2 voltage on both banks at .95. Fuel trim is at 100%. Maf tests good but I still suspect its faulty. I used to like being single, thanks in advance for looking.
June 04, 2009
1999 Ford Explorer Sport 4.0L MIL Lamp on VIN: 1FMYU24E4X
P0174: system to lean bank2. took everyones advice and put intake gaskets on but did not fix.stft b1 12.48 ltft b1 24.96 stft b2 3.12 ltft b2 24.18 coolant temp 79c. calc load 56%. rpm2073. front [...] good rear o2 one at.3 other at.7 no fluctuation. fuel system is returnless.my question ...
June 14, 2009
2000 Lincoln LS 3.9L lack of power VIN: 1LNHM87AXY
P0174: system too lean bank 2. ... was not working. The door panel was removed and the window regulator was found broken. The driver's side window regulator was replaced and the window was working fine. The customer said the next day the window was not working when the door was shut but it ...
June 15, 2009
1999 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality, Misfire VIN: 1FMPU18L1X
P0174: . truck came in running horrible, after pin pointing 2 coils and 1 injector truck ran fine except at idle. after driving a while p0171 and 174 popped on. looked at o2 sensors on modis and both upstream sensors were pegged lean. decided to clean maf to see any di...
June 16, 2009
1999 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality, Misfire VIN: 1FMPU18L1X
P0174: . truck came in running horrible, after pin pointing 2 coils and 1 injector truck ran fine except at idle. after driving a while p0171 and 174 popped on. looked at o2 sensors on modis and both upstream sensors were pegged lean. decided to clean maf to see any di...
June 17, 2009
1998 Ford E-350 Econoline XL 6.8L Poor Idle Quality, MIL Lamp on VIN: 1FDWE30SXW
P0174: bank 2 lean. Hi guys - we need help on this one. Customer driving through from out of town and has power problems for some time already. We scanned ecm & found codes as listed. Road test found moderate lack of power up to 80km/h and at 80 would hardly go any faster eve...
June 19, 2009
1998 Ford E-350 Econoline XL 6.8L Poor Idle Quality, MIL Lamp on VIN: 1FDWE30SXW
P0174: bank 2 lean. Hi guys - we need help on this one. Customer driving through from out of town and has power problems for some time already. We scanned ecm & found codes as listed. Road test found moderate lack of power up to 80km/h and at 80 would hardly go any faster eve...
June 22, 2009
1999 Ford Ranger XLT 4.0L Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 1FTZR15X1X
P0174: system to lean bank 2. I have this 99 ranger with a 4.0l in my shop and the check engine light keeps coming on with lean codes on both banks. From doing a little research I was pointing twords the lower intake and injecter gaskets but after checking fuel pressure im now thinking a w...
June 23, 2009
2004 Chevrolet Suburban 1500 LS 5.3L Cuts out, Stall VIN: 3GNFK16Z44
P0174: Fuel Trim System Lean (Bank 2). Please help! I have this '04 Chev. Suburban, 5.3l "Z" engine with a problem that shows up intermittently. After driving at least 20-30 min., the car hesitates and lugs on acceleration, and will eventually stall. With a fuel pressure gage hooked up, whe...
June 29, 2009
1999 Ford Ranger XLT 4.0L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 1FTZR15X1X
P0174: system to lean bank 2. I have this 99 ford ranger with the 4.0L in my shop and im having a hard time getting to the bottom of this one. I pull the 2 lean codes for both banks, reset the light and codes do come back after 2 drive cycles. First step I took was replace the fuel filter ...
June 02, 2009
2001 Infiniti QX4 3.5L Excessive Emissions, MIL Lamp on VIN: JNRDR07X11
P0174: Fuel Trim Lean (Bank 2). o2 sensors switch good at cruise. At idle o2 voltage on both banks at .95. Fuel trim is at 100%. Maf tests good but I still suspect its faulty. I used to like being single, thanks in advance for looking.
June 04, 2009
1999 Ford Explorer Sport 4.0L MIL Lamp on VIN: 1FMYU24E4X
P0174: system to lean bank2. took everyones advice and put intake gaskets on but did not fix.stft b1 12.48 ltft b1 24.96 stft b2 3.12 ltft b2 24.18 coolant temp 79c. calc load 56%. rpm2073. front [...] good rear o2 one at.3 other at.7 no fluctuation. fuel system is returnless.my question ...
June 14, 2009
2000 Lincoln LS 3.9L lack of power VIN: 1LNHM87AXY
P0174: system too lean bank 2. ... was not working. The door panel was removed and the window regulator was found broken. The driver's side window regulator was replaced and the window was working fine. The customer said the next day the window was not working when the door was shut but it ...
June 15, 2009
1999 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality, Misfire VIN: 1FMPU18L1X
P0174: . truck came in running horrible, after pin pointing 2 coils and 1 injector truck ran fine except at idle. after driving a while p0171 and 174 popped on. looked at o2 sensors on modis and both upstream sensors were pegged lean. decided to clean maf to see any di...
June 16, 2009
1999 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality, Misfire VIN: 1FMPU18L1X
P0174: . truck came in running horrible, after pin pointing 2 coils and 1 injector truck ran fine except at idle. after driving a while p0171 and 174 popped on. looked at o2 sensors on modis and both upstream sensors were pegged lean. decided to clean maf to see any di...
June 17, 2009
1998 Ford E-350 Econoline XL 6.8L Poor Idle Quality, MIL Lamp on VIN: 1FDWE30SXW
P0174: bank 2 lean. Hi guys - we need help on this one. Customer driving through from out of town and has power problems for some time already. We scanned ecm & found codes as listed. Road test found moderate lack of power up to 80km/h and at 80 would hardly go any faster eve...
June 19, 2009
1998 Ford E-350 Econoline XL 6.8L Poor Idle Quality, MIL Lamp on VIN: 1FDWE30SXW
P0174: bank 2 lean. Hi guys - we need help on this one. Customer driving through from out of town and has power problems for some time already. We scanned ecm & found codes as listed. Road test found moderate lack of power up to 80km/h and at 80 would hardly go any faster eve...
June 22, 2009
1999 Ford Ranger XLT 4.0L Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 1FTZR15X1X
P0174: system to lean bank 2. I have this 99 ranger with a 4.0l in my shop and the check engine light keeps coming on with lean codes on both banks. From doing a little research I was pointing twords the lower intake and injecter gaskets but after checking fuel pressure im now thinking a w...
June 23, 2009
2004 Chevrolet Suburban 1500 LS 5.3L Cuts out, Stall VIN: 3GNFK16Z44
P0174: Fuel Trim System Lean (Bank 2). Please help! I have this '04 Chev. Suburban, 5.3l "Z" engine with a problem that shows up intermittently. After driving at least 20-30 min., the car hesitates and lugs on acceleration, and will eventually stall. With a fuel pressure gage hooked up, whe...
June 29, 2009