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P0171 Diagnostic Trouble Code Discussion for July 2007

Fuel System Lean (Bank 1)


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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2000 Geo prizm 1.8L MIL Lamp on VIN: 1Y1SK5Q841
P0171: fuel trim lean. i am a frist time user of this site .the problem i have is a intermite po171 some times the car will complete a drive cycle with no code. i have checked fuel psi and volume it is ok.the mass air was very dirty it was cleaned.the front o2 sensor was replaced.al...
July 02, 2007
1997 Jeep Wrangler SE 2.5L Hesitation, Poor Fuel Economy VIN: 1J4FY29PXV
P0171: Fuel System Lean (Bank 1). Hello every one, THIS JEEP HAVE LACK OF POWER ,WE HAVE CHANGED ITS O2 SENSORS ,AND ALSO AIR AND FUEL FILTERS ,IT RAN FINE FOR ABOUT 1 MONTH AND CAME BACK WITH THE SAME CODE ANY AND ALL IDEARS ARE WELCOME
July 03, 2007
1997 Ford Ranger Splash 2.3L MIL Lamp on VIN: 1FTCR14A2V
P0171: system too lean b1. mitchall has me performing koer self test with fuel vapor hose diconected from intake and says a code should come up, then it sends me to fuel tests. knowing these fords and there dpfe sensor problems checked that also. also checked baro pids and maf voltage. ...
July 05, 2007
1997 Ford Ranger Splash 2.3L MIL Lamp on VIN: 1FTCR14A2V
P0171: system too lean b1. mitchall has me performing koer self test with fuel vapor hose diconected from intake and says a code should come up, then it sends me to fuel tests. knowing these fords and there dpfe sensor problems checked that also. also checked baro pids and maf voltage. ...
July 06, 2007
1999 Toyota 4Runner SR5 3.4L extended crank VIN: JT3H86R3X0
P0171: Fuel System Too Lean (Bank 1). Engine runs well. Extended crank time recent problem. Owner has K&N air filter that he recently serviced with problems developing about same time frame. Came in for CEL with PO171. Graphed O2 sensors with AE and can see a general lean operation most of the...
July 09, 2007
2000 Chrysler Cirrus LX 2.4L MIL Lamp on VIN: 1C3EJ46X0Y
P0171: Fuel System Lean. Hi everyone, thanks in advanced for taking the time and energy to read this post. This car sets code po171, everytime, and I cannot find a solution to its problem. I have Smoke tested for vacuum leaks, tested compression all good at 175psi, checked fuel pressu...
July 10, 2007
2007 Ford Ranger XLT 2.3L MIL Lamp on VIN: 1FTYR10D97
P0171: lean bank 1. Please help me I am going crazy I did a engine job on this truck for a freind of mine. One of his employees thought it would be ok to go without a oilchange in it and blew the engine. I told him that I would put a junk yard engine in it for him to save money, ...
July 11, 2007
2000 Kia Sportage 2.0L Poor Idle Quality, Surge, Cuts out, MIL Lamp on VIN: KNDJA7237Y
P0171: Fuel System Too Lean (Bank 1). Hey guys hoping someone ran across this . When the kia gets hot, been in the high 90s low 100s around here, it will start holding back and losing power, it will also start dieing when sitting at an idle. not all the time mind you. I drove this yesterday and it...
July 12, 2007
2000 Nissan Maxima GLE 3.0L Hesitation, Misfire, MIL Lamp on VIN: JN1CA31D3Y
P0171: Fuel Trim Lean (Bank 1). ... codes.car was driven approx 2k miles.came back with p0171 and p0174.checked for leaks and replaced front o2 sensors.car came back in 1200 miles with lean codes.we checked all sensors and couldn't find a problem.cleared codes...
July 12, 2007
2000 Pontiac Grand Prix GT 3.8L No Start VIN: 1G2WP12K8Y
P0171: Fuel System Lean. Vehicle will start and run for 2+ seconds.. Shuts down by stopping injectors.. There is no 'theift' light present.. Oil level is correct.. Fuel pressure and fuel quality are correct.. 60 psi at prime and rests at 50 psi.. Remote locks and unlocks doors.. I am ...
July 13, 2007
2003 Chrysler Town & Country (Van) LXi 3.8L MIL Lamp on VIN: 2C4GP54L73
P0171: lean system. i have a town contrty lxi have a po171 check fuel psi 45 psi check vacuum leak ono fund non st-adap 6.5 ltadap 24.8 this is when the light comes on check every thing thank you
July 17, 2007
2003 Lincoln LS 3.0L Poor Idle Quality, Stall, MIL Lamp on VIN: 1LNHM86S23
P0171: system lean bank 1. ... not really familiar with them. Here is the problem: Car idles very low, will not accelarate or rev, a lot of times it dies and sometimes it will not restart. At times it will run just fine until you start driving it and it will act up again. I had codes P0...
July 18, 2007
1999 Dodge Stratus 2.4L Cuts out, Stall, MIL Lamp on VIN: 1B3EJ46X2X
P0171: Fuel System Lean (Bank 1). the car had been somewhere else for repair and the mechanics could not fix the problem and it came for me that instantly i`ve hooked up the scanner test and i got the code po171 air/fuel mix ratio rich, i did change the o2 sensor and a light tune up, but still...
July 24, 2007
2004 Dodge Stratus SXT 2.4L MIL Lamp on VIN: 1B3EL46J34
P0171: Fuel System Lean (Bank 1). ... vehicle? Mitchell says 58 psi in one section and 39 in another. If spec is 39 I need to look elsewhere. This vehicle sets code p0171 during warmup. Freeze frame shows code set at idle at 140 degrees coolant temp. You can watch fuel trims go high for awhile...
July 27, 2007
2000 Geo prizm 1.8L MIL Lamp on VIN: 1Y1SK5Q841
P0171: fuel trim lean. i am a frist time user of this site .the problem i have is a intermite po171 some times the car will complete a drive cycle with no code. i have checked fuel psi and volume it is ok.the mass air was very dirty it was cleaned.the front o2 sensor was replaced.al...
July 29, 2007
2000 Ford Explorer XLS 4.0L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1FM7U63E5Y
P0171: lean. Ok the above tells most of what I have. This customer bought the vehicle used about 6 months ago. This is the first time I have worked on this particular vehicle for this cutomer. We have gone through everything that we can think of the MAF seems to responding...
July 30, 2007
1999 Dodge Stratus 2.4L Cuts out, Stall, MIL Lamp on VIN: 1B3EJ46X2X
P0171: Fuel System Lean (Bank 1). the car had been somewhere else for repair and the mechanics could not fix the problem and it came for me that instantly i`ve hooked up the scanner test and i got the code po171 air/fuel mix ratio rich, i did change the o2 sensor and a light tune up, but still...
July 31, 2007
2000 Geo prizm 1.8L MIL Lamp on VIN: 1Y1SK5Q841
P0171: fuel trim lean. i am a frist time user of this site .the problem i have is a intermite po171 some times the car will complete a drive cycle with no code. i have checked fuel psi and volume it is ok.the mass air was very dirty it was cleaned.the front o2 sensor was replaced.al...
July 02, 2007
1997 Jeep Wrangler SE 2.5L Hesitation, Poor Fuel Economy VIN: 1J4FY29PXV
P0171: Fuel System Lean (Bank 1). Hello every one, THIS JEEP HAVE LACK OF POWER ,WE HAVE CHANGED ITS O2 SENSORS ,AND ALSO AIR AND FUEL FILTERS ,IT RAN FINE FOR ABOUT 1 MONTH AND CAME BACK WITH THE SAME CODE ANY AND ALL IDEARS ARE WELCOME
July 03, 2007
1997 Ford Ranger Splash 2.3L MIL Lamp on VIN: 1FTCR14A2V
P0171: system too lean b1. mitchall has me performing koer self test with fuel vapor hose diconected from intake and says a code should come up, then it sends me to fuel tests. knowing these fords and there dpfe sensor problems checked that also. also checked baro pids and maf voltage. ...
July 05, 2007
1997 Ford Ranger Splash 2.3L MIL Lamp on VIN: 1FTCR14A2V
P0171: system too lean b1. mitchall has me performing koer self test with fuel vapor hose diconected from intake and says a code should come up, then it sends me to fuel tests. knowing these fords and there dpfe sensor problems checked that also. also checked baro pids and maf voltage. ...
July 06, 2007
1999 Toyota 4Runner SR5 3.4L extended crank VIN: JT3H86R3X0
P0171: Fuel System Too Lean (Bank 1). Engine runs well. Extended crank time recent problem. Owner has K&N air filter that he recently serviced with problems developing about same time frame. Came in for CEL with PO171. Graphed O2 sensors with AE and can see a general lean operation most of the...
July 09, 2007
2000 Chrysler Cirrus LX 2.4L MIL Lamp on VIN: 1C3EJ46X0Y
P0171: Fuel System Lean. Hi everyone, thanks in advanced for taking the time and energy to read this post. This car sets code po171, everytime, and I cannot find a solution to its problem. I have Smoke tested for vacuum leaks, tested compression all good at 175psi, checked fuel pressu...
July 10, 2007
2007 Ford Ranger XLT 2.3L MIL Lamp on VIN: 1FTYR10D97
P0171: lean bank 1. Please help me I am going crazy I did a engine job on this truck for a freind of mine. One of his employees thought it would be ok to go without a oilchange in it and blew the engine. I told him that I would put a junk yard engine in it for him to save money, ...
July 11, 2007
2000 Kia Sportage 2.0L Poor Idle Quality, Surge, Cuts out, MIL Lamp on VIN: KNDJA7237Y
P0171: Fuel System Too Lean (Bank 1). Hey guys hoping someone ran across this . When the kia gets hot, been in the high 90s low 100s around here, it will start holding back and losing power, it will also start dieing when sitting at an idle. not all the time mind you. I drove this yesterday and it...
July 12, 2007
2000 Nissan Maxima GLE 3.0L Hesitation, Misfire, MIL Lamp on VIN: JN1CA31D3Y
P0171: Fuel Trim Lean (Bank 1). ... codes.car was driven approx 2k miles.came back with p0171 and p0174.checked for leaks and replaced front o2 sensors.car came back in 1200 miles with lean codes.we checked all sensors and couldn't find a problem.cleared codes...
July 12, 2007
2000 Pontiac Grand Prix GT 3.8L No Start VIN: 1G2WP12K8Y
P0171: Fuel System Lean. Vehicle will start and run for 2+ seconds.. Shuts down by stopping injectors.. There is no 'theift' light present.. Oil level is correct.. Fuel pressure and fuel quality are correct.. 60 psi at prime and rests at 50 psi.. Remote locks and unlocks doors.. I am ...
July 13, 2007
2003 Chrysler Town & Country (Van) LXi 3.8L MIL Lamp on VIN: 2C4GP54L73
P0171: lean system. i have a town contrty lxi have a po171 check fuel psi 45 psi check vacuum leak ono fund non st-adap 6.5 ltadap 24.8 this is when the light comes on check every thing thank you
July 17, 2007
2003 Lincoln LS 3.0L Poor Idle Quality, Stall, MIL Lamp on VIN: 1LNHM86S23
P0171: system lean bank 1. ... not really familiar with them. Here is the problem: Car idles very low, will not accelarate or rev, a lot of times it dies and sometimes it will not restart. At times it will run just fine until you start driving it and it will act up again. I had codes P0...
July 18, 2007
1999 Dodge Stratus 2.4L Cuts out, Stall, MIL Lamp on VIN: 1B3EJ46X2X
P0171: Fuel System Lean (Bank 1). the car had been somewhere else for repair and the mechanics could not fix the problem and it came for me that instantly i`ve hooked up the scanner test and i got the code po171 air/fuel mix ratio rich, i did change the o2 sensor and a light tune up, but still...
July 24, 2007
2004 Dodge Stratus SXT 2.4L MIL Lamp on VIN: 1B3EL46J34
P0171: Fuel System Lean (Bank 1). ... vehicle? Mitchell says 58 psi in one section and 39 in another. If spec is 39 I need to look elsewhere. This vehicle sets code p0171 during warmup. Freeze frame shows code set at idle at 140 degrees coolant temp. You can watch fuel trims go high for awhile...
July 27, 2007
2000 Geo prizm 1.8L MIL Lamp on VIN: 1Y1SK5Q841
P0171: fuel trim lean. i am a frist time user of this site .the problem i have is a intermite po171 some times the car will complete a drive cycle with no code. i have checked fuel psi and volume it is ok.the mass air was very dirty it was cleaned.the front o2 sensor was replaced.al...
July 29, 2007
2000 Ford Explorer XLS 4.0L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1FM7U63E5Y
P0171: lean. Ok the above tells most of what I have. This customer bought the vehicle used about 6 months ago. This is the first time I have worked on this particular vehicle for this cutomer. We have gone through everything that we can think of the MAF seems to responding...
July 30, 2007
1999 Dodge Stratus 2.4L Cuts out, Stall, MIL Lamp on VIN: 1B3EJ46X2X
P0171: Fuel System Lean (Bank 1). the car had been somewhere else for repair and the mechanics could not fix the problem and it came for me that instantly i`ve hooked up the scanner test and i got the code po171 air/fuel mix ratio rich, i did change the o2 sensor and a light tune up, but still...
July 31, 2007