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P0171 Diagnostic Trouble Code Discussion for July 2004

Fuel System Lean (Bank 1)


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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2001 Chevrolet S10 4.3L Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GCDT19WX1
P0171: Fuel System Lean. Hello everyone, This truck has an intermittent problem. The symptoms it displays are: Cold start normal, once it warms up it idles normally, in gear or park. Once you drive it after a short while it will start to cut out at cruise but only occasionally, droppi...
July 06, 2004
1999 Acura CL Premium 3.0L Hesitation, MIL Lamp on VIN: 19UYA2253X
P0171: Fuel System Too Lean (Bank 1). We performed MotorVac March 2004. A fuel leak onto the coil started a fire which was put out immediately--within 15 seconds. We informed customer within minutes, inspected fire area only to find NO components were affected. The car ran much better and customer...
July 07, 2004
2000 Toyota Celica GT 1.8L Hesitation, MIL Lamp on VIN: JTDDR32T9Y
P0171: Fuel System Too Lean (Bank 1). ... of hard start and lose of power while accelerating and check engine light. Found code P0171, System to lean bank #1. With engine running, it sounds like a vacumn leak coming from the intake area and when you tap the throttle, there is flat spot off idle....
July 08, 2004
1996 Ford Thunderbird LX 3.8L Hesitation, Cuts out, MIL Lamp on VIN: 1F4LP6244T
When test drove car lost power on uphill grade and on a wot car fell flat and no acel. Pops back through intake on wot. Good spark and fuel press. O2 sensors are white and powdery plugs are burning lean.
July 09, 2004
1998 Toyota RAV4 2.0L Excessive Emissions, Poor Idle Quality, Surge, MIL Lamp on VIN: JT3XP10V1W
P0171: Fuel System Too Lean (Bank 1). ... have this rav4 for about 2 weeks This thing starts to run rich but we have a lean code.We saw the Air fuel ratio stuck at about 650mv tested it with snap-on vantage scope.Did not respond too test so we replaced it.Found Tsb For updated sensor in alldata so...
July 13, 2004
1998 Toyota RAV4 2.0L Excessive Emissions, Poor Idle Quality, Surge, MIL Lamp on VIN: JT3XP10V1W
P0171: Fuel System Too Lean (Bank 1). ... have this rav4 for about 2 weeks This thing starts to run rich but we have a lean code.We saw the Air fuel ratio stuck at about 650mv tested it with snap-on vantage scope.Did not respond too test so we replaced it.Found Tsb For updated sensor in alldata so...
July 15, 2004
1998 Pontiac Grand Am SE 2.4L Excessive Emissions, Surge, Poor Fuel Economy, MIL Lamp on, STFT &LTFT CRAWL UP VIN: 1G2NE52T8W
P0171: Fuel System Lean. College girls car, came in with mil codes are above. Can't figure out what is skewing the load calc. as it is 22% at idle baro seems right for sea level (HOU TX) Map seems to be working. Remember this is speed density-no maf.Maf on scanner is 5 gm/sec.both o2s...
July 31, 2004
2001 Chevrolet S10 4.3L Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GCDT19WX1
P0171: Fuel System Lean. Hello everyone, This truck has an intermittent problem. The symptoms it displays are: Cold start normal, once it warms up it idles normally, in gear or park. Once you drive it after a short while it will start to cut out at cruise but only occasionally, droppi...
July 06, 2004
1999 Acura CL Premium 3.0L Hesitation, MIL Lamp on VIN: 19UYA2253X
P0171: Fuel System Too Lean (Bank 1). We performed MotorVac March 2004. A fuel leak onto the coil started a fire which was put out immediately--within 15 seconds. We informed customer within minutes, inspected fire area only to find NO components were affected. The car ran much better and customer...
July 07, 2004
2000 Toyota Celica GT 1.8L Hesitation, MIL Lamp on VIN: JTDDR32T9Y
P0171: Fuel System Too Lean (Bank 1). ... of hard start and lose of power while accelerating and check engine light. Found code P0171, System to lean bank #1. With engine running, it sounds like a vacumn leak coming from the intake area and when you tap the throttle, there is flat spot off idle....
July 08, 2004
1996 Ford Thunderbird LX 3.8L Hesitation, Cuts out, MIL Lamp on VIN: 1F4LP6244T
When test drove car lost power on uphill grade and on a wot car fell flat and no acel. Pops back through intake on wot. Good spark and fuel press. O2 sensors are white and powdery plugs are burning lean.
July 09, 2004
1998 Toyota RAV4 2.0L Excessive Emissions, Poor Idle Quality, Surge, MIL Lamp on VIN: JT3XP10V1W
P0171: Fuel System Too Lean (Bank 1). ... have this rav4 for about 2 weeks This thing starts to run rich but we have a lean code.We saw the Air fuel ratio stuck at about 650mv tested it with snap-on vantage scope.Did not respond too test so we replaced it.Found Tsb For updated sensor in alldata so...
July 13, 2004
1998 Toyota RAV4 2.0L Excessive Emissions, Poor Idle Quality, Surge, MIL Lamp on VIN: JT3XP10V1W
P0171: Fuel System Too Lean (Bank 1). ... have this rav4 for about 2 weeks This thing starts to run rich but we have a lean code.We saw the Air fuel ratio stuck at about 650mv tested it with snap-on vantage scope.Did not respond too test so we replaced it.Found Tsb For updated sensor in alldata so...
July 15, 2004
1998 Pontiac Grand Am SE 2.4L Excessive Emissions, Surge, Poor Fuel Economy, MIL Lamp on, STFT &LTFT CRAWL UP VIN: 1G2NE52T8W
P0171: Fuel System Lean. College girls car, came in with mil codes are above. Can't figure out what is skewing the load calc. as it is 22% at idle baro seems right for sea level (HOU TX) Map seems to be working. Remember this is speed density-no maf.Maf on scanner is 5 gm/sec.both o2s...
July 31, 2004