Join Now
International Automotive Technicians Network

P0174 Diagnostic Trouble Code Discussion for November 2006

Fuel System Lean (Bank 2)


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2000 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF28B9Y
OK, before i get too deep into all these codes, I have found some vacuum line problems. On the front motor mount, there is PWM electronically controlled vacuum valve. There are three vacuum lines attached, one out the top that goes to the air intake, the upper...
November 07, 2006
2000 Mercury Sable GS 3.0L Surge, MIL Lamp on VIN: 1MEFM58U3Y
P0174: system lean bank 2. car came in with ses light on and some other unrelated complaints found large list of codes indicating fuel system wasn,t working well running system lean fuel pressure test came back with koeo 28 psi and koer about 8 psi so not even close to pressure spec. we...
November 08, 2006
2000 Mercury Sable GS 3.0L Surge, MIL Lamp on VIN: 1MEFM58U3Y
P0174: system lean bank 2. car came in with ses light on and some other unrelated complaints found large list of codes indicating fuel system wasn,t working well running system lean fuel pressure test came back with koeo 28 psi and koer about 8 psi so not even close to pressure spec. we...
November 09, 2006
1998 Ford Explorer XL 4.0L MIL Lamp on VIN: 1FMZU32X5W
P0174: lean bank 2. I have a 98 explorer with po171 and po174. I have read all the post and i agreed with the intake oring problem. but I have only seen this on the SOHC motors and the recall only applys to the SOHC motors. Am i missing something i don't mind selling intake gaske...
November 15, 2006
2000 Jaguar S-Type 3.0L MIL Lamp on VIN: SAJDA01C4Y
P0174: Lean Lt. bank. I have a vacuum leak at, what I think is the PCV valve plumbing under the back Left side of the Intake manifold. There is about a 3/8" poly tube coming from the throtle body area with manifold vacuum, it goes to the back Left of intake there is a rubber e...
November 28, 2006
1998 Lincoln Continental 4.6L Misfire VIN: 1LNFM97V0W
P0174: Lean Bank2. Vehicle came to shop w/ engine misfire & check engine light on. Initial inspection found fault codes for cylinder misfire in cylinder #3 & #4. Found long term fuel trim reading lean. Further inspection found barometer out of specs for altitude. Found M...
November 29, 2006
1997 Ford Ranger XL 4.0L p0171, p0174 VIN: 4F4CR16X8V
P0174: System lean bank two. Lean fuel trim codes are setting, but condition does NOT exist for these codes. First off, for those checking the VIN, yep... This is actually a Mazda B4000, but I wanted to get the attention of Ford guys on this one. Secondly, I know Ford and Ford fuel trim ...
November 30, 2006
2001 Lexus RX300 3.0L Excessive Emissions, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JTJHF10U61
P0174: system lean bank 2. ... "jerking-chugging" and vehicle had become very hard on fuel. Dropped vehicle off at shop & 20 min. later would not start. Vehicle flooded almost instantly & would not clear itself. Did tune-up & vehicle started fine but ran poorly. L.T....
November 30, 2006
2000 Toyota Avalon XL 3.0L MIL Lamp on VIN: 4T1BF28B9Y
OK, before i get too deep into all these codes, I have found some vacuum line problems. On the front motor mount, there is PWM electronically controlled vacuum valve. There are three vacuum lines attached, one out the top that goes to the air intake, the upper...
November 07, 2006
2000 Mercury Sable GS 3.0L Surge, MIL Lamp on VIN: 1MEFM58U3Y
P0174: system lean bank 2. car came in with ses light on and some other unrelated complaints found large list of codes indicating fuel system wasn,t working well running system lean fuel pressure test came back with koeo 28 psi and koer about 8 psi so not even close to pressure spec. we...
November 08, 2006
2000 Mercury Sable GS 3.0L Surge, MIL Lamp on VIN: 1MEFM58U3Y
P0174: system lean bank 2. car came in with ses light on and some other unrelated complaints found large list of codes indicating fuel system wasn,t working well running system lean fuel pressure test came back with koeo 28 psi and koer about 8 psi so not even close to pressure spec. we...
November 09, 2006
1998 Ford Explorer XL 4.0L MIL Lamp on VIN: 1FMZU32X5W
P0174: lean bank 2. I have a 98 explorer with po171 and po174. I have read all the post and i agreed with the intake oring problem. but I have only seen this on the SOHC motors and the recall only applys to the SOHC motors. Am i missing something i don't mind selling intake gaske...
November 15, 2006
2000 Jaguar S-Type 3.0L MIL Lamp on VIN: SAJDA01C4Y
P0174: Lean Lt. bank. I have a vacuum leak at, what I think is the PCV valve plumbing under the back Left side of the Intake manifold. There is about a 3/8" poly tube coming from the throtle body area with manifold vacuum, it goes to the back Left of intake there is a rubber e...
November 28, 2006
1998 Lincoln Continental 4.6L Misfire VIN: 1LNFM97V0W
P0174: Lean Bank2. Vehicle came to shop w/ engine misfire & check engine light on. Initial inspection found fault codes for cylinder misfire in cylinder #3 & #4. Found long term fuel trim reading lean. Further inspection found barometer out of specs for altitude. Found M...
November 29, 2006
1997 Ford Ranger XL 4.0L p0171, p0174 VIN: 4F4CR16X8V
P0174: System lean bank two. Lean fuel trim codes are setting, but condition does NOT exist for these codes. First off, for those checking the VIN, yep... This is actually a Mazda B4000, but I wanted to get the attention of Ford guys on this one. Secondly, I know Ford and Ford fuel trim ...
November 30, 2006
2001 Lexus RX300 3.0L Excessive Emissions, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: JTJHF10U61
P0174: system lean bank 2. ... "jerking-chugging" and vehicle had become very hard on fuel. Dropped vehicle off at shop & 20 min. later would not start. Vehicle flooded almost instantly & would not clear itself. Did tune-up & vehicle started fine but ran poorly. L.T....
November 30, 2006