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P0174 Diagnostic Trouble Code Discussion for March 2007

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
1996 Ford Taurus LX 3.0L MIL Lamp on VIN: 1FALP53S3T
P0174: bank2lean. Have replaced the mass air flow sensor and checked powers and grounds . Watched the graphing with the snap-on vantage and pattern looks right. My baro readingis 26.9 and my hertz reading is150hz which is to low for my area I should read 157hz I also have taken...
March 06, 2007
1997 Chrysler Concorde LX 3.5L MIL Lamp on VIN: 2C3HD56F7V
P0174: Fuel System Lean (Bank 2). Hello all! This car seems to run fine, but both banks are running lean, adaptive memory is about +25% on both sides. Before the car came to our shop it has had all 4 o2 sensors replaced,plenum gasket,fuel pressure regulator,plugs and wires replaced.(according ...
March 07, 2007
1996 Ford E-350 Econoline Club Wagon XLT 4.9L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FBJS31Y7T
P0174: system lean. vehicle came in running poorly. had original tune up so we changed the plugs,wires ext. Since tune up it popped a po385 crank sensor code.we found the balencer to be severly out of balance and wobbling. Replaced balancer as well as sensor and problem still rem...
March 07, 2007
1996 Ford E-250 Econoline 4.9L Misfire VIN: 1FTFE24Y0T
P0174: system lean bank 2. I have been struggling with this van. Came to us from another facility near where the van over-heated. Our customers driver pulled in and they diagnosed engine to have a head gasket failure. Vehicle was then towed to our shop. First, I performed a co2 test and...
March 07, 2007
2001 Lexus RX300 3.0L MIL Lamp on VIN: JTJGF10U41
P0174: lean oxygen sensor bank-2 sensor-1. ... to get it right) -vehicle came in w/p0174, found broken pcv line. replaced test drove everything looked good on scanner, sent away. -its back two weeks later w/p0174. looking at freeze frame data closer it seems like maybe a slow o2 sensor. but checking i...
March 07, 2007
2001 Lincoln LS 3.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM87A21
P0174: Syster too lean on Bank 2. This car came in for rough idle and check engine light on. The service codes are PO172, PO174, PO304 and PO1000. The customer has tried to cleared the codes before bringing the vehicle to shop. The engine runs rough at idling and the misfire malfunction monito...
March 07, 2007
1996 Ford E-350 Econoline Club Wagon XLT 4.9L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FBJS31Y7T
P0174: system lean. vehicle came in running poorly. had original tune up so we changed the plugs,wires ext. Since tune up it popped a po385 crank sensor code.we found the balencer to be severly out of balance and wobbling. Replaced balancer as well as sensor and problem still rem...
March 08, 2007
1996 Ford E-250 Econoline 4.9L Misfire VIN: 1FTFE24Y0T
P0174: system lean bank 2. I have been struggling with this van. Came to us from another facility near where the van over-heated. Our customers driver pulled in and they diagnosed engine to have a head gasket failure. Vehicle was then towed to our shop. First, I performed a co2 test and...
March 08, 2007
2002 Toyota Highlander 2.4L MIL Lamp on VIN: JTEGD2IA82
P0174: Fuel System Too Lean (Bank 2). per customer, problem happened all at once.started hard cold and check engine light came on.next day did not start unless throttle depressed
March 12, 2007
1999 GMC Sierra 1500 SL 5.3L Poor Idle Quality, Hesitation, Cuts out, Misfire VIN: 1GTEC19TXX
P0174: Fuel Trim System Lean (Bank 2). ... V8 Truck and had 2 codes, p0171 and p0174. We repaired the upper intake since our data was much like the ones that had that problem. After repair was done the codes do not come back but now the trck is skipping a low idle and when you dump the gas it goes ...
March 14, 2007
2000 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTZX1723Y
P0174: Lean Bank-2. This truck had the classic problems. Lean codes, broken pcv tubes. Replaced pcv tubes,checked intake for leaks with smoke machine, no leaks found after pcv hose repairs. Checked fuel pressure 35 at idle and 2000 rpm. Volume is good. The baro pid is below 157 a...
March 18, 2007
2002 Dodge Ram 2500 Truck 5.9L Poor Idle Quality, Surge, Cuts out VIN: 3B7KC26Z72
P0174: Fuel System Lean (Bank 2). After driving this truck with normal scan readings and no drivability problems, the upstream O2 sensor values will go to 0 and the fuel pulse width kicks up to 13-14 ms even at idle. It will buck and snort all the way back to the shop. Than after sitting in th...
March 19, 2007
1999 Ford Windstar SE 3.8L Hesitation, Stall, Misfire VIN: 2FM2A514XX
P0174: system lean bank 2. Hi all, This car came in with Check Engine light on (flashing) - car was running real bad acting like it would stall but never actually stall - also car would not get out of its own way - engine is also making a knocking noise - checked compression - ok - chec...
March 20, 2007
2001 Ford Windstar SE Sport 3.8L MIL Lamp on, unknown VIN: 2FMZA57491
P0174: bank 2 too lean. ... in originally with a belt sqeel and we eventually figured out it was the cmp "shaft" siezing up. i was given the job and i replaced the shaft with a new one and a new cmp sensor.NOTE: when i put it in i used the tool but it was for a 3.0/4.0, not t...
March 22, 2007
1998 Toyota Land Cruiser 4.7L MIL Lamp on VIN: JT3HT05J7W
P0174: bank 2 lean. hi everybody. i've got this toyota that keeps setting lean codes. tried replacing the mass air flow sensors because they seem to be reading low. can't find a vacuum leak. fuel pressure seems a little low at idle but it does step up higher rpms. fuel trims are ...
March 22, 2007
1998 Ford E-250 Econoline 4.2L Hesitation, Surge VIN: 1FTPE2421W
P0174: fuel system lean bank 2. this truck has a huge tip-in hesitation(engine almost stalls if throttle whacked open)if you open throttle very slowly it wont hesitate. i checked fuel pressure 30 idle 43 on accel. checked for vacuum leaks\none found checked all related air intake tubing i.e....
March 23, 2007
2000 Ford Windstar SEL 3.8L MIL Lamp on VIN: 2FMDA5340Y
P0174: system too lean bank2. ... last week,it had failed the emissions test because the mil was on.the 2 dtc were p0171-p0174 the long term fuel trims were at + 13 we hooked the smoke machine up and found the tyoical intake plenum leak. we resealed the plenum and cleared the codes,told t...
March 24, 2007
2001 Land Rover Discovery Series II SD 4.0L Misfire, MIL Lamp on VIN: SALTLI5451
P0174: system too lean bank2. This vehicle has me scratching my head due to the lack of information available to me, both scanner wise and repair info. MIL will flash when under load , comp good, plug is good, wire is not leaking, and no other codes are present other than the lean codes. O...
March 28, 2007
2001 Land Rover Discovery Series II SD 4.0L Misfire, MIL Lamp on VIN: SALTLI5451
P0174: system too lean bank2. This vehicle has me scratching my head due to the lack of information available to me, both scanner wise and repair info. MIL will flash when under load , comp good, plug is good, wire is not leaking, and no other codes are present other than the lean codes. O...
March 29, 2007
1996 Ford Taurus LX 3.0L MIL Lamp on VIN: 1FALP53S3T
P0174: bank2lean. Have replaced the mass air flow sensor and checked powers and grounds . Watched the graphing with the snap-on vantage and pattern looks right. My baro readingis 26.9 and my hertz reading is150hz which is to low for my area I should read 157hz I also have taken...
March 06, 2007
1997 Chrysler Concorde LX 3.5L MIL Lamp on VIN: 2C3HD56F7V
P0174: Fuel System Lean (Bank 2). Hello all! This car seems to run fine, but both banks are running lean, adaptive memory is about +25% on both sides. Before the car came to our shop it has had all 4 o2 sensors replaced,plenum gasket,fuel pressure regulator,plugs and wires replaced.(according ...
March 07, 2007
1996 Ford E-350 Econoline Club Wagon XLT 4.9L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FBJS31Y7T
P0174: system lean. vehicle came in running poorly. had original tune up so we changed the plugs,wires ext. Since tune up it popped a po385 crank sensor code.we found the balencer to be severly out of balance and wobbling. Replaced balancer as well as sensor and problem still rem...
March 07, 2007
1996 Ford E-250 Econoline 4.9L Misfire VIN: 1FTFE24Y0T
P0174: system lean bank 2. I have been struggling with this van. Came to us from another facility near where the van over-heated. Our customers driver pulled in and they diagnosed engine to have a head gasket failure. Vehicle was then towed to our shop. First, I performed a co2 test and...
March 07, 2007
2001 Lexus RX300 3.0L MIL Lamp on VIN: JTJGF10U41
P0174: lean oxygen sensor bank-2 sensor-1. ... to get it right) -vehicle came in w/p0174, found broken pcv line. replaced test drove everything looked good on scanner, sent away. -its back two weeks later w/p0174. looking at freeze frame data closer it seems like maybe a slow o2 sensor. but checking i...
March 07, 2007
2001 Lincoln LS 3.9L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1LNHM87A21
P0174: Syster too lean on Bank 2. This car came in for rough idle and check engine light on. The service codes are PO172, PO174, PO304 and PO1000. The customer has tried to cleared the codes before bringing the vehicle to shop. The engine runs rough at idling and the misfire malfunction monito...
March 07, 2007
1996 Ford E-350 Econoline Club Wagon XLT 4.9L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FBJS31Y7T
P0174: system lean. vehicle came in running poorly. had original tune up so we changed the plugs,wires ext. Since tune up it popped a po385 crank sensor code.we found the balencer to be severly out of balance and wobbling. Replaced balancer as well as sensor and problem still rem...
March 08, 2007
1996 Ford E-250 Econoline 4.9L Misfire VIN: 1FTFE24Y0T
P0174: system lean bank 2. I have been struggling with this van. Came to us from another facility near where the van over-heated. Our customers driver pulled in and they diagnosed engine to have a head gasket failure. Vehicle was then towed to our shop. First, I performed a co2 test and...
March 08, 2007
2002 Toyota Highlander 2.4L MIL Lamp on VIN: JTEGD2IA82
P0174: Fuel System Too Lean (Bank 2). per customer, problem happened all at once.started hard cold and check engine light came on.next day did not start unless throttle depressed
March 12, 2007
1999 GMC Sierra 1500 SL 5.3L Poor Idle Quality, Hesitation, Cuts out, Misfire VIN: 1GTEC19TXX
P0174: Fuel Trim System Lean (Bank 2). ... V8 Truck and had 2 codes, p0171 and p0174. We repaired the upper intake since our data was much like the ones that had that problem. After repair was done the codes do not come back but now the trck is skipping a low idle and when you dump the gas it goes ...
March 14, 2007
2000 Ford F-150 XL 4.2L MIL Lamp on VIN: 1FTZX1723Y
P0174: Lean Bank-2. This truck had the classic problems. Lean codes, broken pcv tubes. Replaced pcv tubes,checked intake for leaks with smoke machine, no leaks found after pcv hose repairs. Checked fuel pressure 35 at idle and 2000 rpm. Volume is good. The baro pid is below 157 a...
March 18, 2007
2002 Dodge Ram 2500 Truck 5.9L Poor Idle Quality, Surge, Cuts out VIN: 3B7KC26Z72
P0174: Fuel System Lean (Bank 2). After driving this truck with normal scan readings and no drivability problems, the upstream O2 sensor values will go to 0 and the fuel pulse width kicks up to 13-14 ms even at idle. It will buck and snort all the way back to the shop. Than after sitting in th...
March 19, 2007
1999 Ford Windstar SE 3.8L Hesitation, Stall, Misfire VIN: 2FM2A514XX
P0174: system lean bank 2. Hi all, This car came in with Check Engine light on (flashing) - car was running real bad acting like it would stall but never actually stall - also car would not get out of its own way - engine is also making a knocking noise - checked compression - ok - chec...
March 20, 2007
2001 Ford Windstar SE Sport 3.8L MIL Lamp on, unknown VIN: 2FMZA57491
P0174: bank 2 too lean. ... in originally with a belt sqeel and we eventually figured out it was the cmp "shaft" siezing up. i was given the job and i replaced the shaft with a new one and a new cmp sensor.NOTE: when i put it in i used the tool but it was for a 3.0/4.0, not t...
March 22, 2007
1998 Toyota Land Cruiser 4.7L MIL Lamp on VIN: JT3HT05J7W
P0174: bank 2 lean. hi everybody. i've got this toyota that keeps setting lean codes. tried replacing the mass air flow sensors because they seem to be reading low. can't find a vacuum leak. fuel pressure seems a little low at idle but it does step up higher rpms. fuel trims are ...
March 22, 2007
1998 Ford E-250 Econoline 4.2L Hesitation, Surge VIN: 1FTPE2421W
P0174: fuel system lean bank 2. this truck has a huge tip-in hesitation(engine almost stalls if throttle whacked open)if you open throttle very slowly it wont hesitate. i checked fuel pressure 30 idle 43 on accel. checked for vacuum leaks\none found checked all related air intake tubing i.e....
March 23, 2007
2000 Ford Windstar SEL 3.8L MIL Lamp on VIN: 2FMDA5340Y
P0174: system too lean bank2. ... last week,it had failed the emissions test because the mil was on.the 2 dtc were p0171-p0174 the long term fuel trims were at + 13 we hooked the smoke machine up and found the tyoical intake plenum leak. we resealed the plenum and cleared the codes,told t...
March 24, 2007
2001 Land Rover Discovery Series II SD 4.0L Misfire, MIL Lamp on VIN: SALTLI5451
P0174: system too lean bank2. This vehicle has me scratching my head due to the lack of information available to me, both scanner wise and repair info. MIL will flash when under load , comp good, plug is good, wire is not leaking, and no other codes are present other than the lean codes. O...
March 28, 2007
2001 Land Rover Discovery Series II SD 4.0L Misfire, MIL Lamp on VIN: SALTLI5451
P0174: system too lean bank2. This vehicle has me scratching my head due to the lack of information available to me, both scanner wise and repair info. MIL will flash when under load , comp good, plug is good, wire is not leaking, and no other codes are present other than the lean codes. O...
March 29, 2007