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P0174 Diagnostic Trouble Code Discussion for October 2005

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2001 Cadillac DeVille 4.6L Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 1G6KD54YX1
P0174: Fuel Trim System Lean (Bank 2). This caddy has a rough, surging idle...constanly going from 500 to 650 rpm. It has codes 171 and 174 saying it is too lean. I have sprayed berryman all over it & found no vac. leaks, removed & plugged the egr, no change. ...EGO sensors all reading very...
October 12, 2005
1998 Ford Windstar GL 3.8L MIL Lamp on VIN: 2FMZA5149W
P0174: bank 2 lean. Vehicle came in with a code P0174-Bank #2 lean. After checking the O2 sensors we had replaced 3 months ago (with OE parts) and checking for vacuum leaks we replaced the upper intake gasket and isolators. Vehicle was OK for about a month and now the MIL is back...
October 14, 2005
2000 Saturn LS2 3.0L Misfire, MIL Lamp on VIN: 1G8JW52R0Y
P0174: Fuel Trim System Lean (Bank 2). ... returned 2 weeks later with p0171 and p0174, system lean. alldata says to check for fuel pressure, vacuum leak, exhaust leak, restricted fuel injector(s), maf prob, water in fuel. says if o2 b1s1 is greater than 1.2 and o2 b1s...
October 18, 2005
1996 Ford Mustang GT 4.6L MIL Lamp on VIN: 1FALP45X9T
P0174: sys toolean bank 2. this mustang came to us with history of drivability problems. the customer had it at another shop for cel light on and no power concerns. they put in a new fuel pump. this did not fix all of the problems. now he brought us the car. when i pulled the codes and ...
October 21, 2005
2001 Toyota Avalon XL 3.0L MIL Lamp on, poor acceleration VIN: 4T1BF28BX1
P0174: System too lean bank 2. Car came in with PO174. LTFT1 reading -14.1 and Bank 2 -8.5% when idleing and runs perfect. When cruising LTFT both banks go to +30.4%-slight pinging and power limited and under WOT Air/Fuel are reading lean almost 4 volts and can hear a little pinging. Fuel p...
October 21, 2005
2002 Cadillac Escalade 6.0L Poor Idle Quality, MIL Lamp on VIN: 1GYEK63N02
P0174: Fuel Trim System Lean (Bank 2). ... p0102, p0171 and p0174. Has already been to dealer twice. I verified the wiring repair over the front drive shaft. They did an excellent job. At some point the wiring had shorted out blowing the 10 amp ign1 fuse in the un...
October 28, 2005
2001 BMW 330Ci 3.0L Misfire, MIL Lamp on VIN: WBABS53491
P0174: System lean bank 2. Hello, This BMW came in with 6 codes, all of which are shown below. The customer says the car runs bad when the light is on, but the light will go off on its own and the car will run fine. I cannot get the codes to reset or the vehicle to run poorly. The lea...
October 31, 2005
2001 Cadillac DeVille 4.6L Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 1G6KD54YX1
P0174: Fuel Trim System Lean (Bank 2). This caddy has a rough, surging idle...constanly going from 500 to 650 rpm. It has codes 171 and 174 saying it is too lean. I have sprayed berryman all over it & found no vac. leaks, removed & plugged the egr, no change. ...EGO sensors all reading very...
October 12, 2005
1998 Ford Windstar GL 3.8L MIL Lamp on VIN: 2FMZA5149W
P0174: bank 2 lean. Vehicle came in with a code P0174-Bank #2 lean. After checking the O2 sensors we had replaced 3 months ago (with OE parts) and checking for vacuum leaks we replaced the upper intake gasket and isolators. Vehicle was OK for about a month and now the MIL is back...
October 14, 2005
2000 Saturn LS2 3.0L Misfire, MIL Lamp on VIN: 1G8JW52R0Y
P0174: Fuel Trim System Lean (Bank 2). ... returned 2 weeks later with p0171 and p0174, system lean. alldata says to check for fuel pressure, vacuum leak, exhaust leak, restricted fuel injector(s), maf prob, water in fuel. says if o2 b1s1 is greater than 1.2 and o2 b1s...
October 18, 2005
1996 Ford Mustang GT 4.6L MIL Lamp on VIN: 1FALP45X9T
P0174: sys toolean bank 2. this mustang came to us with history of drivability problems. the customer had it at another shop for cel light on and no power concerns. they put in a new fuel pump. this did not fix all of the problems. now he brought us the car. when i pulled the codes and ...
October 21, 2005
2001 Toyota Avalon XL 3.0L MIL Lamp on, poor acceleration VIN: 4T1BF28BX1
P0174: System too lean bank 2. Car came in with PO174. LTFT1 reading -14.1 and Bank 2 -8.5% when idleing and runs perfect. When cruising LTFT both banks go to +30.4%-slight pinging and power limited and under WOT Air/Fuel are reading lean almost 4 volts and can hear a little pinging. Fuel p...
October 21, 2005
2002 Cadillac Escalade 6.0L Poor Idle Quality, MIL Lamp on VIN: 1GYEK63N02
P0174: Fuel Trim System Lean (Bank 2). ... p0102, p0171 and p0174. Has already been to dealer twice. I verified the wiring repair over the front drive shaft. They did an excellent job. At some point the wiring had shorted out blowing the 10 amp ign1 fuse in the un...
October 28, 2005
2001 BMW 330Ci 3.0L Misfire, MIL Lamp on VIN: WBABS53491
P0174: System lean bank 2. Hello, This BMW came in with 6 codes, all of which are shown below. The customer says the car runs bad when the light is on, but the light will go off on its own and the car will run fine. I cannot get the codes to reset or the vehicle to run poorly. The lea...
October 31, 2005