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P0171 Diagnostic Trouble Code Discussion for October 2004

Fuel System Lean (Bank 1)


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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
1999 Ford F-350 Super Duty XL 6.8L Hesitation, Surge, Misfire VIN: 1FTWW33SOX
P0171: lean bnk 1. Hello, I have a po171,po300, and a po401. The dpfe was not showing the proper voltage so I replaced it ,now working and no more 401. This truck pings uphill and runs very badly,(feels like miss) but runs perfect with no load. problem occurs only under med to h...
October 05, 2004
1999 Ford F-350 Super Duty XL 6.8L Hesitation, Surge, Misfire VIN: 1FTWW33SOX
P0171: lean bnk 1. Hello, I have a po171,po300, and a po401. The dpfe was not showing the proper voltage so I replaced it ,now working and no more 401. This truck pings uphill and runs very badly,(feels like miss) but runs perfect with no load. problem occurs only under med to h...
October 06, 2004
1996 Chrysler Sebring JX 2.5L Hesitation, Cuts out, MIL Lamp on VIN: 3C3EL45H9T
P0171: Fuel System Lean (Bank 1). cat.conv.none OE,failed smog due to check engine light on,high nox and hc.any idea,thanks Ronny.
October 11, 2004
2000 Chrysler Sebring LX 2.5L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3C3EL55HOY
P0171: Fuel System Lean (Bank 1). Car came in last June with low fuel mileage complaint. Changed plugs & wires Everything ok Car is back. Starts and runs normally for about 30 seconds then stalls, has lack of power, Hesitation etc Customer states that car will run bad for about 10 min. a...
October 11, 2004
1997 Ford Expedition XLT 5.4L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 1FMFU18T9V
P0171: lean bank 1. The vehicle almost stalls and runs rough,hesitates. Chech engine light is on. Checked fuel filter,it is o.k. Cleaned MAF and it reads o.k. Both upstream and downstream O2 sensors reads 0mV. Does anyone have any help?
October 11, 2004
2000 Lincoln LS 3.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1LNHM86S4Y
P0171: bank 1 lean. hello and thanks for any help given, this lincoln came from dealer, where they said intake gaskets were leaking. we checked by spraying carb cleaner around intake gaskets and agreed with the dealer. we replaced both upper and lower intake gaskets and there is ...
October 14, 2004
2000 Toyota Echo 1.5L Excessive Emissions, MIL Lamp on VIN: JTDBT1232Y
P0171: Fuel System Too Lean (Bank 1). This code will not reset for a day or two. We roadtest several times after repair and clearing, no prob. Two days later back on, then may go off, but stays in mem. Cus drives hi-way to work, hard to get good discription, but mat be on ramp related(accell?). My...
October 18, 2004
1999 Dodge Avenger ES 2.5L MIL Lamp on VIN: 4B3AU52N2X
P0171: Fuel System Lean (Bank 1). Hello .. This avenger is defying repair .. the car idles slightly rough and the long term fuel trim is 24 % for the rear bank and 17% on the front... We have smoked tested for leaks and found none .. I pulled the Egr valve and plugged it for no change. I am le...
October 19, 2004
1997 Ford Expedition XLT 5.4L Misfire, MIL Lamp on VIN: IFMFU18L6V
... p01131,p0171,p0172.idle surge and missing.so far i check for vacuum leak.i could not find any.i know smoke macine is the best way check for vacuum leak. unfortunately i dont have.check fitting at pressure regulator is ok.all va...
October 23, 2004
1996 Pontiac Sunfire SE 2.2L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 3G2JB5241T
P0171: Fuel System Lean (Bank 1). ... Sunfire thats burning me up. It's got a 2.2L with 95,000 miles. Complaint was CEL on and boggs at accelleration. The codes were PO171 System too lean and code P1171 Fuel system lean during accel. Fuel presure was at 43lbs and volume looked good, and there ...
October 27, 2004
2000 Chrysler Sebring LX 2.5L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3C3EL55HOY
P0171: Fuel System Lean (Bank 1). Car came in last June with low fuel mileage complaint. Changed plugs & wires Everything ok Car is back. Starts and runs normally for about 30 seconds then stalls, has lack of power, Hesitation etc Customer states that car will run bad for about 10 min. a...
October 29, 2004
1999 Ford F-350 Super Duty XL 6.8L Hesitation, Surge, Misfire VIN: 1FTWW33SOX
P0171: lean bnk 1. Hello, I have a po171,po300, and a po401. The dpfe was not showing the proper voltage so I replaced it ,now working and no more 401. This truck pings uphill and runs very badly,(feels like miss) but runs perfect with no load. problem occurs only under med to h...
October 05, 2004
1999 Ford F-350 Super Duty XL 6.8L Hesitation, Surge, Misfire VIN: 1FTWW33SOX
P0171: lean bnk 1. Hello, I have a po171,po300, and a po401. The dpfe was not showing the proper voltage so I replaced it ,now working and no more 401. This truck pings uphill and runs very badly,(feels like miss) but runs perfect with no load. problem occurs only under med to h...
October 06, 2004
1996 Chrysler Sebring JX 2.5L Hesitation, Cuts out, MIL Lamp on VIN: 3C3EL45H9T
P0171: Fuel System Lean (Bank 1). cat.conv.none OE,failed smog due to check engine light on,high nox and hc.any idea,thanks Ronny.
October 11, 2004
2000 Chrysler Sebring LX 2.5L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3C3EL55HOY
P0171: Fuel System Lean (Bank 1). Car came in last June with low fuel mileage complaint. Changed plugs & wires Everything ok Car is back. Starts and runs normally for about 30 seconds then stalls, has lack of power, Hesitation etc Customer states that car will run bad for about 10 min. a...
October 11, 2004
1997 Ford Expedition XLT 5.4L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 1FMFU18T9V
P0171: lean bank 1. The vehicle almost stalls and runs rough,hesitates. Chech engine light is on. Checked fuel filter,it is o.k. Cleaned MAF and it reads o.k. Both upstream and downstream O2 sensors reads 0mV. Does anyone have any help?
October 11, 2004
2000 Lincoln LS 3.0L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1LNHM86S4Y
P0171: bank 1 lean. hello and thanks for any help given, this lincoln came from dealer, where they said intake gaskets were leaking. we checked by spraying carb cleaner around intake gaskets and agreed with the dealer. we replaced both upper and lower intake gaskets and there is ...
October 14, 2004
2000 Toyota Echo 1.5L Excessive Emissions, MIL Lamp on VIN: JTDBT1232Y
P0171: Fuel System Too Lean (Bank 1). This code will not reset for a day or two. We roadtest several times after repair and clearing, no prob. Two days later back on, then may go off, but stays in mem. Cus drives hi-way to work, hard to get good discription, but mat be on ramp related(accell?). My...
October 18, 2004
1999 Dodge Avenger ES 2.5L MIL Lamp on VIN: 4B3AU52N2X
P0171: Fuel System Lean (Bank 1). Hello .. This avenger is defying repair .. the car idles slightly rough and the long term fuel trim is 24 % for the rear bank and 17% on the front... We have smoked tested for leaks and found none .. I pulled the Egr valve and plugged it for no change. I am le...
October 19, 2004
1997 Ford Expedition XLT 5.4L Misfire, MIL Lamp on VIN: IFMFU18L6V
... p01131,p0171,p0172.idle surge and missing.so far i check for vacuum leak.i could not find any.i know smoke macine is the best way check for vacuum leak. unfortunately i dont have.check fitting at pressure regulator is ok.all va...
October 23, 2004
1996 Pontiac Sunfire SE 2.2L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 3G2JB5241T
P0171: Fuel System Lean (Bank 1). ... Sunfire thats burning me up. It's got a 2.2L with 95,000 miles. Complaint was CEL on and boggs at accelleration. The codes were PO171 System too lean and code P1171 Fuel system lean during accel. Fuel presure was at 43lbs and volume looked good, and there ...
October 27, 2004
2000 Chrysler Sebring LX 2.5L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3C3EL55HOY
P0171: Fuel System Lean (Bank 1). Car came in last June with low fuel mileage complaint. Changed plugs & wires Everything ok Car is back. Starts and runs normally for about 30 seconds then stalls, has lack of power, Hesitation etc Customer states that car will run bad for about 10 min. a...
October 29, 2004