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P0174 Diagnostic Trouble Code Discussion for February 2009

Fuel System Lean (Bank 2)


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Trouble Ticket Help Requests for DTC P0174
Help Request Posted
2000 Ford Taurus SE 2-Valve 3.0L Poor Idle Quality, Hesitation, Surge, Poor Fuel Economy, MIL Lamp on VIN: 1FAFP5525Y
P0174: lean. Hi guys thanks for your repsonses in advance. I have a lean condition with this taurus. long term trim is at 33%+ and short term 22% both banks. car seems to run better until it hits closed loop. then when computer takes over. smoke tested for vacume leans as ...
February 04, 2009
2000 Ford F-150 Lariat 5.4L Stall, Misfire VIN: 1FTRX18L6Y
P0174: Bank 2 Lean. This truck was sent to us from another shop. The complaint is rough idle & acts like going to stall occas. at stops. Codes 171,174 were present. We "smoke" tested the engine & found no leaks, other than a collapsed pcv hose, which we replaced. ...
February 04, 2009
1999 Ford Ranger XL 3.0L Poor Idle Quality, Hesitation, Cuts out VIN: 1FTYR10V3X
P0174: lean bank two. Truck in for hard starting and dies and no power on take off feels like running out of gas. Check for codes had P0171,174,1131,1151, short term fuel trim running between 28 and 34 both banks, and long term in the 20's both banks,both upstream 02's are between ...
February 05, 2009
2000 Ford F-150 Lariat 5.4L Stall, Misfire VIN: 1FTRX18L6Y
P0174: Bank 2 Lean. This truck was sent to us from another shop. The complaint is rough idle & acts like going to stall occas. at stops. Codes 171,174 were present. We "smoke" tested the engine & found no leaks, other than a collapsed pcv hose, which we replaced. ...
February 05, 2009
2003 Ford F-250 Super Duty XL 5.4L MIL Lamp on VIN: 1FTNF21L93
P0174: Lean Bank2. This truck has been a thorn in my side.came in a month ago with codes PO171 & PO174.I checked for vaccumn Leaks. None found.Replaced Mass air flow meter & PCV Valve.Sent him on his way.Two days later back with same codes.Double checked for vac leaks(ba...
February 05, 2009
2001 Toyota Sienna LE 3.0L MIL Lamp on VIN: 4TS2F13C91
P0174: Fuel System Too Lean (Bank 2). ... about 3 months ago requesting a 60K mile service. It was about 8,000 miles early, but we were happy to perform this early service, 3 months roll by and 100+ cars later, theyre back with a check engine light, we cleared the code which was for the inactive o...
February 06, 2009
1999 Ford F-150 4.2L Poor Idle Quality, Stall, MIL Lamp on VIN: 1FTZS1725X
P0174: lean exhaust. ... a high school auto class and one of the students has a 1999 F 150 4.2l, auto.That has the follwing codes P0171 and P0174 lean exhaust on both banks and a unstable idle after a hot soak restart. We have not been able to see anything wrong on the scan data ...
February 08, 2009
2003 GMC Yukon Denali 6.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 1GKEK63UX3
P0174: Fuel Trim System Lean (Bank 2). ... (MAF Sensor), P0171 and P0174 (right and left bank too lean). Previous repair history: MAF sensor checks out ok, throttle body was cleaned, PCV was replaced, and fuel filter was replaced. After performing work the light stayed out for a few days and then...
February 09, 2009
2000 Lincoln Continental 4.6L MIL Lamp on VIN: 1LNHM97V5Y
P0174: System lean bank 2. We are the third stop for this problem and I am finding out why. I have checked all the normal items, MAF, used a O2 tester and checked the O2 which checked O.K. Smoke tested through the intake and could not see any leaks. On the Modis both bank 1 and bank 2 O...
February 11, 2009
2005 Honda Accord EX 3.0L MIL Lamp on VIN: 1HGCM81654
P0174: Fuel System Too Lean (Bank 2). ... came back with ses light codes p0171 and p0174. checked for vacuum leaks. smoke tested none found. fuel pressure good 57 psi. made sure ethanol was not used in vehicle fuel alcohol content at 4%. followed alldata diagnostics which led to valve adjustment w...
February 13, 2009
1999 Ford Ranger XLT 4.0L Poor Fuel Economy, MIL Lamp on VIN: 1FTYR11X5X
P0174: lean rich limit bank 2. CHECK ENGINE LIGHT COMES ON AFTER ABOUT 2 WEEKS WITH THE SAME CODES ALL THE TIME. WE HAVE CHANGED 1 OF THE O2 AND HAVE CHECKED FOR VAC LEAKS AND HAVE CLEANED THE MASS AIR FLOW AS INSTRUCTED IN THE TSB 98-06-08. all is fine for about 2 or more weeks and then th...
February 17, 2009
2003 Ford F-150 XL 4.2L MIL Lamp on VIN: 2FTRF18243
Hello I have this pick up here and it is throwing lean codes. I have looked all over for obvious vacuum leaks and cannot find any. Tried spaying and could not hear any rpm change. Is there a vacuum leak problem on the 4.2L like there is on the 4.6 and 5.4 vacu...
February 17, 2009
1999 Ford Expedition XLT 4.6L Poor Idle Quality, MIL Lamp on VIN: 1FMRU1868X
P0174: lean bank 2. Hello all. This vehicle came in with a cel on and misfire code. Foiund failed plug wires. Replaced plugs wires fuel and air filter. Test drove runs fine. Returned vehicle to customer. 500 miles later vehicle comes in with po171 po 174 code. Check maf sensor wa...
February 19, 2009
1997 Ford Ranger XL 4.0L MIL Lamp on VIN: 1FTCR14X8U
P0174: system too lean bank 2. Hello Everyone, need help.Check engine light on 1 month ago. Came in with codes PO171 & PO174 RUNS GREAT NO COMPLANTS EXCEPT CHECK ENGINE LIGHT ON.. Test drove with codes cleared for 20 miles the codes have no reset so for. I am showing LONG TERM FUEL TRIM...
February 22, 2009
2005 Checker Avalanche 5.3L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3GNEK12ZX5
P0174: system lean bank 2. This vehicle only runs bad after hard acceleration.The map voltage goes drops to -0.60 volts.I removed the map to inspect and it was soaked with oil.i cleaned the oil off and voltage is normal around 1 volt at idle. redrove vehicle runs fine until you accelera...
February 24, 2009
2005 Checker Avalanche 5.3L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3GNEK12ZX5
P0174: system lean bank 2. This vehicle only runs bad after hard acceleration.The map voltage goes drops to -0.60 volts.I removed the map to inspect and it was soaked with oil.i cleaned the oil off and voltage is normal around 1 volt at idle. redrove vehicle runs fine until you accelera...
February 25, 2009
2000 Ford Taurus SE 2-Valve 3.0L Poor Idle Quality, Hesitation, Surge, Poor Fuel Economy, MIL Lamp on VIN: 1FAFP5525Y
P0174: lean. Hi guys thanks for your repsonses in advance. I have a lean condition with this taurus. long term trim is at 33%+ and short term 22% both banks. car seems to run better until it hits closed loop. then when computer takes over. smoke tested for vacume leans as ...
February 04, 2009
2000 Ford F-150 Lariat 5.4L Stall, Misfire VIN: 1FTRX18L6Y
P0174: Bank 2 Lean. This truck was sent to us from another shop. The complaint is rough idle & acts like going to stall occas. at stops. Codes 171,174 were present. We "smoke" tested the engine & found no leaks, other than a collapsed pcv hose, which we replaced. ...
February 04, 2009
1999 Ford Ranger XL 3.0L Poor Idle Quality, Hesitation, Cuts out VIN: 1FTYR10V3X
P0174: lean bank two. Truck in for hard starting and dies and no power on take off feels like running out of gas. Check for codes had P0171,174,1131,1151, short term fuel trim running between 28 and 34 both banks, and long term in the 20's both banks,both upstream 02's are between ...
February 05, 2009
2000 Ford F-150 Lariat 5.4L Stall, Misfire VIN: 1FTRX18L6Y
P0174: Bank 2 Lean. This truck was sent to us from another shop. The complaint is rough idle & acts like going to stall occas. at stops. Codes 171,174 were present. We "smoke" tested the engine & found no leaks, other than a collapsed pcv hose, which we replaced. ...
February 05, 2009
2003 Ford F-250 Super Duty XL 5.4L MIL Lamp on VIN: 1FTNF21L93
P0174: Lean Bank2. This truck has been a thorn in my side.came in a month ago with codes PO171 & PO174.I checked for vaccumn Leaks. None found.Replaced Mass air flow meter & PCV Valve.Sent him on his way.Two days later back with same codes.Double checked for vac leaks(ba...
February 05, 2009
2001 Toyota Sienna LE 3.0L MIL Lamp on VIN: 4TS2F13C91
P0174: Fuel System Too Lean (Bank 2). ... about 3 months ago requesting a 60K mile service. It was about 8,000 miles early, but we were happy to perform this early service, 3 months roll by and 100+ cars later, theyre back with a check engine light, we cleared the code which was for the inactive o...
February 06, 2009
1999 Ford F-150 4.2L Poor Idle Quality, Stall, MIL Lamp on VIN: 1FTZS1725X
P0174: lean exhaust. ... a high school auto class and one of the students has a 1999 F 150 4.2l, auto.That has the follwing codes P0171 and P0174 lean exhaust on both banks and a unstable idle after a hot soak restart. We have not been able to see anything wrong on the scan data ...
February 08, 2009
2003 GMC Yukon Denali 6.0L Poor Idle Quality, Surge, MIL Lamp on VIN: 1GKEK63UX3
P0174: Fuel Trim System Lean (Bank 2). ... (MAF Sensor), P0171 and P0174 (right and left bank too lean). Previous repair history: MAF sensor checks out ok, throttle body was cleaned, PCV was replaced, and fuel filter was replaced. After performing work the light stayed out for a few days and then...
February 09, 2009
2000 Lincoln Continental 4.6L MIL Lamp on VIN: 1LNHM97V5Y
P0174: System lean bank 2. We are the third stop for this problem and I am finding out why. I have checked all the normal items, MAF, used a O2 tester and checked the O2 which checked O.K. Smoke tested through the intake and could not see any leaks. On the Modis both bank 1 and bank 2 O...
February 11, 2009
2005 Honda Accord EX 3.0L MIL Lamp on VIN: 1HGCM81654
P0174: Fuel System Too Lean (Bank 2). ... came back with ses light codes p0171 and p0174. checked for vacuum leaks. smoke tested none found. fuel pressure good 57 psi. made sure ethanol was not used in vehicle fuel alcohol content at 4%. followed alldata diagnostics which led to valve adjustment w...
February 13, 2009
1999 Ford Ranger XLT 4.0L Poor Fuel Economy, MIL Lamp on VIN: 1FTYR11X5X
P0174: lean rich limit bank 2. CHECK ENGINE LIGHT COMES ON AFTER ABOUT 2 WEEKS WITH THE SAME CODES ALL THE TIME. WE HAVE CHANGED 1 OF THE O2 AND HAVE CHECKED FOR VAC LEAKS AND HAVE CLEANED THE MASS AIR FLOW AS INSTRUCTED IN THE TSB 98-06-08. all is fine for about 2 or more weeks and then th...
February 17, 2009
2003 Ford F-150 XL 4.2L MIL Lamp on VIN: 2FTRF18243
Hello I have this pick up here and it is throwing lean codes. I have looked all over for obvious vacuum leaks and cannot find any. Tried spaying and could not hear any rpm change. Is there a vacuum leak problem on the 4.2L like there is on the 4.6 and 5.4 vacu...
February 17, 2009
1999 Ford Expedition XLT 4.6L Poor Idle Quality, MIL Lamp on VIN: 1FMRU1868X
P0174: lean bank 2. Hello all. This vehicle came in with a cel on and misfire code. Foiund failed plug wires. Replaced plugs wires fuel and air filter. Test drove runs fine. Returned vehicle to customer. 500 miles later vehicle comes in with po171 po 174 code. Check maf sensor wa...
February 19, 2009
1997 Ford Ranger XL 4.0L MIL Lamp on VIN: 1FTCR14X8U
P0174: system too lean bank 2. Hello Everyone, need help.Check engine light on 1 month ago. Came in with codes PO171 & PO174 RUNS GREAT NO COMPLANTS EXCEPT CHECK ENGINE LIGHT ON.. Test drove with codes cleared for 20 miles the codes have no reset so for. I am showing LONG TERM FUEL TRIM...
February 22, 2009
2005 Checker Avalanche 5.3L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3GNEK12ZX5
P0174: system lean bank 2. This vehicle only runs bad after hard acceleration.The map voltage goes drops to -0.60 volts.I removed the map to inspect and it was soaked with oil.i cleaned the oil off and voltage is normal around 1 volt at idle. redrove vehicle runs fine until you accelera...
February 24, 2009
2005 Checker Avalanche 5.3L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3GNEK12ZX5
P0174: system lean bank 2. This vehicle only runs bad after hard acceleration.The map voltage goes drops to -0.60 volts.I removed the map to inspect and it was soaked with oil.i cleaned the oil off and voltage is normal around 1 volt at idle. redrove vehicle runs fine until you accelera...
February 25, 2009