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P0174 Diagnostic Trouble Code Discussion for October 2011

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
1999 Ford F-150 5.4L Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 2FTRX18COX
P0174: bank 2 lean. ... customer says that the idle drops at stops. I cant verify the nearly dying at stops. After intake gasket repalcement the only dtcs to come back were p1131 and p1151 o2 indicates lean with p0401 egr insufficant flow. Before gasket replacement it was p0171 a...
October 03, 2011
2003 Chevrolet Silverado 1500 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCEK14X33
P0174: Fuel Trim System Lean (Bank 2). This truck has me stumped!!! O2 Sensors installed but vehicle misfires after 5-10 miles and FT%/ST% above threshholds after driving. O2's flatline and system dumping fuel due to lean condition. Inspected spider assy with fuel pump running and no detectable lea...
October 07, 2011
2008 Toyota Highlander 3.5L Misfire, MIL Lamp on VIN: JTEES41A58
P0174: System lean bank 2. Car runs great until you accelerate hard then the ses blinks and misses and low perf. Turn key off and restart runs fine until you accelerate hard then runs poor again with above codes. Nothing in iatn or mitchell. Any toyota techs out there that can help me o...
October 07, 2011
2004 Ford F-150 Heritage XL 4.2L Poor Fuel Economy VIN: 2FTRF172XC
P0174: system bank 2lean. hi guys need help. have been furiously working on trying to get short term fueltrims to go below 33% at idle and 24%long term while driving. as stated above in repair history, all the normal repairs have been done. and no i have not just been throwing parts at...
October 10, 2011
1997 Chevrolet Express 1500 5.7L Hesitation, MIL Lamp on VIN: 1GBFG15RXV
P0174: Fuel Trim System Lean (Bank 2). Came in for check engine light.customer was out of town when the light came on.it was diagnosed as needing fuel pressure regulator.after repairs light came back on within 20 miles so customer drove it home and here it is.fuel pressure running is at 49 psi 58 k...
October 11, 2011
2004 Suzuki Verona S 2.5L Poor Idle Quality, Cuts out, MIL Lamp on VIN: KL5VM52L34
P0174: Fuel System Too Lean (Bank 2). Thank you for any help with this. And yes all of those codes were stored when it came in. Ok it came in for a jerking/bucking. when driving if you drive below 10 mph car would stall but start back up. Finally the dash and tail lights are not working... Ok figu...
October 11, 2011
2004 Suzuki Verona S 2.5L Poor Idle Quality, Cuts out, MIL Lamp on VIN: KL5VM52L34
P0174: Fuel System Too Lean (Bank 2). Thank you for any help with this. And yes all of those codes were stored when it came in. Ok it came in for a jerking/bucking. when driving if you drive below 10 mph car would stall but start back up. Finally the dash and tail lights are not working... Ok figu...
October 12, 2011
1997 Chevrolet Express 1500 5.7L Hesitation, MIL Lamp on VIN: 1GBFG15RXV
P0174: Fuel Trim System Lean (Bank 2). Came in for check engine light.customer was out of town when the light came on.it was diagnosed as needing fuel pressure regulator.after repairs light came back on within 20 miles so customer drove it home and here it is.fuel pressure running is at 49 psi 58 k...
October 17, 2011
2006 Ford Fusion SEL 3.0L MIL Lamp on, VIN: 3FAHP08106
P0174: Bank 2 lean. Car has an intermitten codes of banks 1 and 2 lean. Vehicle codes can be cleared and it may come back a few minuets later (at idle) or during a drive (50 plus miles or so). I have checked for Vacuum leaks and found none. MAF sensor is good and been replaced. ...
October 18, 2011
2006 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALME15436
P0174: lean bank 2. Cannot find a vacum leak eventhough it sounds like there is one . People say that the cat's crack sometimes but this is not the case, did check fuel trims they seem to be around zero most of the time. I know that the brake vacum pump is not working, however i ...
October 19, 2011
2003 BMW M5 5.0L Poor Idle Quality, Surge, Misfire VIN: WBSDE93403
P0174: Misfire 0n start up. Have spent numerous hours chasing this problem
October 21, 2011
2006 Ford Fusion SEL 3.0L MIL Lamp on, VIN: 3FAHP08106
P0174: Bank 2 lean. Car has an intermitten codes of banks 1 and 2 lean. Vehicle codes can be cleared and it may come back a few minuets later (at idle) or during a drive (50 plus miles or so). I have checked for Vacuum leaks and found none. MAF sensor is good and been replaced. ...
October 23, 2011
2000 Chevrolet S10 4.3L MIL Lamp on VIN: 1GCDT14WXY
P0174: Fuel System Lean (Bank 2). Hey guys, this S-10 came into the shop last week running really bad under a load. It would sputter and backfire and had no power. Another tech in the shop replaced the fuel pump because the pressure was way under spec, and the problem was still there. He then ...
October 24, 2011
2004 Cadillac SRX 4.6L MIL Lamp on VIN: 1GYDE63A04
P0174: Fuel Trim System Lean (Bank 2). ... mil on with code p0174 bank 2 lean. verified code, found vacuum leak at booster hose -intake side-. also the b1s1 and b2s1 are both dead reading .037 volts and not moving at all, no codes for o2's. note both after cat o2's reads .600 volts and switch on ac...
October 25, 2011
2001 Ford Explorer Sport 4.0L MIL Lamp on VIN: 1FMYU70E71
P0174: lean bank 2. Thanks in advance for any input. I have this headache on my hands. I had this one come in for check engine light. I pulled codes and found lean codes. I checked for major vacuum leaks and found nothing. I have seen several of these with intake gaskets brittle ...
October 26, 2011
2001 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTZF07231
P0174: System too lean bank 2. We haven't found any vacuum leaks, engine runs normally. I am aware that these vehicles have a history of intake leaks especially the isolator bolts and MAF problems however that would affect both banks and we only see lean running bank 2.I am wondering if a D...
October 27, 2011
2005 Jaguar X-Type 3.0L MIL Lamp on VIN: SAJWA51C05
P0174: lean bank two. ... time. I have this 05 Jaguar with a P0171 and P0174. When the vehicle first arrived it only had one code, P0174 lean bank two. We started with looking at the data and saw @ idle LFT B2=+19 B1=+10.9, when accelarating LFT B2 would drop to +14.6 and B1 would ...
October 30, 2011
1999 Ford F-150 5.4L Poor Idle Quality, Surge, Stall, MIL Lamp on VIN: 2FTRX18COX
P0174: bank 2 lean. ... customer says that the idle drops at stops. I cant verify the nearly dying at stops. After intake gasket repalcement the only dtcs to come back were p1131 and p1151 o2 indicates lean with p0401 egr insufficant flow. Before gasket replacement it was p0171 a...
October 03, 2011
2003 Chevrolet Silverado 1500 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCEK14X33
P0174: Fuel Trim System Lean (Bank 2). This truck has me stumped!!! O2 Sensors installed but vehicle misfires after 5-10 miles and FT%/ST% above threshholds after driving. O2's flatline and system dumping fuel due to lean condition. Inspected spider assy with fuel pump running and no detectable lea...
October 07, 2011
2008 Toyota Highlander 3.5L Misfire, MIL Lamp on VIN: JTEES41A58
P0174: System lean bank 2. Car runs great until you accelerate hard then the ses blinks and misses and low perf. Turn key off and restart runs fine until you accelerate hard then runs poor again with above codes. Nothing in iatn or mitchell. Any toyota techs out there that can help me o...
October 07, 2011
2004 Ford F-150 Heritage XL 4.2L Poor Fuel Economy VIN: 2FTRF172XC
P0174: system bank 2lean. hi guys need help. have been furiously working on trying to get short term fueltrims to go below 33% at idle and 24%long term while driving. as stated above in repair history, all the normal repairs have been done. and no i have not just been throwing parts at...
October 10, 2011
1997 Chevrolet Express 1500 5.7L Hesitation, MIL Lamp on VIN: 1GBFG15RXV
P0174: Fuel Trim System Lean (Bank 2). Came in for check engine light.customer was out of town when the light came on.it was diagnosed as needing fuel pressure regulator.after repairs light came back on within 20 miles so customer drove it home and here it is.fuel pressure running is at 49 psi 58 k...
October 11, 2011
2004 Suzuki Verona S 2.5L Poor Idle Quality, Cuts out, MIL Lamp on VIN: KL5VM52L34
P0174: Fuel System Too Lean (Bank 2). Thank you for any help with this. And yes all of those codes were stored when it came in. Ok it came in for a jerking/bucking. when driving if you drive below 10 mph car would stall but start back up. Finally the dash and tail lights are not working... Ok figu...
October 11, 2011
2004 Suzuki Verona S 2.5L Poor Idle Quality, Cuts out, MIL Lamp on VIN: KL5VM52L34
P0174: Fuel System Too Lean (Bank 2). Thank you for any help with this. And yes all of those codes were stored when it came in. Ok it came in for a jerking/bucking. when driving if you drive below 10 mph car would stall but start back up. Finally the dash and tail lights are not working... Ok figu...
October 12, 2011
1997 Chevrolet Express 1500 5.7L Hesitation, MIL Lamp on VIN: 1GBFG15RXV
P0174: Fuel Trim System Lean (Bank 2). Came in for check engine light.customer was out of town when the light came on.it was diagnosed as needing fuel pressure regulator.after repairs light came back on within 20 miles so customer drove it home and here it is.fuel pressure running is at 49 psi 58 k...
October 17, 2011
2006 Ford Fusion SEL 3.0L MIL Lamp on, VIN: 3FAHP08106
P0174: Bank 2 lean. Car has an intermitten codes of banks 1 and 2 lean. Vehicle codes can be cleared and it may come back a few minuets later (at idle) or during a drive (50 plus miles or so). I have checked for Vacuum leaks and found none. MAF sensor is good and been replaced. ...
October 18, 2011
2006 Land Rover Range Rover HSE 4.4L MIL Lamp on VIN: SALME15436
P0174: lean bank 2. Cannot find a vacum leak eventhough it sounds like there is one . People say that the cat's crack sometimes but this is not the case, did check fuel trims they seem to be around zero most of the time. I know that the brake vacum pump is not working, however i ...
October 19, 2011
2003 BMW M5 5.0L Poor Idle Quality, Surge, Misfire VIN: WBSDE93403
P0174: Misfire 0n start up. Have spent numerous hours chasing this problem
October 21, 2011
2006 Ford Fusion SEL 3.0L MIL Lamp on, VIN: 3FAHP08106
P0174: Bank 2 lean. Car has an intermitten codes of banks 1 and 2 lean. Vehicle codes can be cleared and it may come back a few minuets later (at idle) or during a drive (50 plus miles or so). I have checked for Vacuum leaks and found none. MAF sensor is good and been replaced. ...
October 23, 2011
2000 Chevrolet S10 4.3L MIL Lamp on VIN: 1GCDT14WXY
P0174: Fuel System Lean (Bank 2). Hey guys, this S-10 came into the shop last week running really bad under a load. It would sputter and backfire and had no power. Another tech in the shop replaced the fuel pump because the pressure was way under spec, and the problem was still there. He then ...
October 24, 2011
2004 Cadillac SRX 4.6L MIL Lamp on VIN: 1GYDE63A04
P0174: Fuel Trim System Lean (Bank 2). ... mil on with code p0174 bank 2 lean. verified code, found vacuum leak at booster hose -intake side-. also the b1s1 and b2s1 are both dead reading .037 volts and not moving at all, no codes for o2's. note both after cat o2's reads .600 volts and switch on ac...
October 25, 2011
2001 Ford Explorer Sport 4.0L MIL Lamp on VIN: 1FMYU70E71
P0174: lean bank 2. Thanks in advance for any input. I have this headache on my hands. I had this one come in for check engine light. I pulled codes and found lean codes. I checked for major vacuum leaks and found nothing. I have seen several of these with intake gaskets brittle ...
October 26, 2011
2001 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTZF07231
P0174: System too lean bank 2. We haven't found any vacuum leaks, engine runs normally. I am aware that these vehicles have a history of intake leaks especially the isolator bolts and MAF problems however that would affect both banks and we only see lean running bank 2.I am wondering if a D...
October 27, 2011
2005 Jaguar X-Type 3.0L MIL Lamp on VIN: SAJWA51C05
P0174: lean bank two. ... time. I have this 05 Jaguar with a P0171 and P0174. When the vehicle first arrived it only had one code, P0174 lean bank two. We started with looking at the data and saw @ idle LFT B2=+19 B1=+10.9, when accelarating LFT B2 would drop to +14.6 and B1 would ...
October 30, 2011