Ford Ranger P0171 CodeAny suggestions on what i should do next? Fuel pressure is a@ 65 psi. If it needs to be corrected more than that, the P0171 code will be stored. Ford Ranger P0171 Check Engine Code, Injector and Intake Gasket Replacement Chasing Mustangs 1. The O2 sensors have the ability to correct a fuel. I have read a lot about this dtc and it really seems to poiint to an intake manifold leak problem, although there is a lot written about the 1997. This sensor is one of the most important ones when it comes to determining the air to fuel mixture. Listen for an exhaust leak or vacuum leak within the engine. Freeze frame shows rpm 1817 load 45% speed 37 coolant 170 °F STFT1 +4. But It Is Throwing Codes P0171 And P0174. Runs Smooth At Both Idle And High Rpm. 9K views 11 months ago In the video, I complete testing for a. This sensor is basically measuring the output gases in the exhaust. p0171 is a lean on bank one, most often caused by a vacuum leak somewhere. A Ford P0171 is a LEAN code fpr cylinder bank 1, and P0174 is a LEAN code for cylinder bank 2. Freeze Frame Shows Asked by cturnock · 11 ANSWERS 2000 FORD RANGER 2000 Ford Ranger P0171 And P0174. I'm thinking a clogged fuel injector as the common denominator from those codes. I have a 2002 ford ranger xlt its got 4. 0l at dtc p0171 p0174 - This is a long time problem with this truck. In the video, I complete testing for a check engine code of P0171 on my 2003 Ford Ranger. FORD P0171 and P0174. Engine Bank 2 is the opposite side of the engine. Freeze Frame Shows Asked by cturnock · 11 ANSWERS 2000 FORD RANGER 2000 Ford Ranger P0171 And P0174. Make sure to check voltage and charging conditions first. Bad Oxygen Sensor Can Cause P0171 Ford Another probable cause for the P0171 Ford that we would like to cover is a bad oxygen sensor also known as the O2 sensor. EASY FIX If you have Ford, your engine light is on and you have code P0171 in this video we will Shop the Auto Repair Guys store. Code P0171 indicates Bank 1 of the engine has a lean fuel mixture. FORD RANGER 2000 Ford Ranger P0171 And P0174 Codes Have A 2000 Range 4x4r 4. The P0171 code indicates that the oxygen (O2) sensor on bank 1 sent a signal to the engine control module that the air-fuel mixture is too lean to be corrected. The Infamous P0171 and P0174 codes troubleshooting alright, lately i have been experiencing this issue, i have taken out the MAF sensor, cleaned it with MAF Cleaner and also even tried replacing the MAF. P0171 Trouble Code: System Too Lean Bank 1 Diagnosis">P0171 Trouble Code: System Too Lean Bank 1 Diagnosis. I read up on it and apparently its a common thing among fords and that the. Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time. P0171 definition: Bank 1 has too much air or not enough fuel (lean bank) Issue Severity: MODERATE- Extended driving with this code can cause internal engine damage. Re: P0171/PO174 2003 Ranger Spay carb cleaner around the intake and see if it speeds up. no other lean codes present. 0L auto I regularly get this code and my CEL illuminates. Your car or truck has either a P0171, P0174 lean fault code or both stored in the pc, these codes derive from Oxygen Sensor (O-2) readings. In this video I have a Ford Ranger with lean codes on both banks, freeze frame indicates that the lean condition is happening at idle. A little background truck had a cracked head now has 2 new heads 2 new 02 sensors complete upper gasket set, plugs, wires, vac lines, ran great after job still seams to although a little down on. p0171 code on my ford ranger 2. After driving the vehicle, then a restart, So the code was pending during your driving, and the restart made the code come to full maturity, Check for vacuum leaks especially the PCV hose making sure its not collapse, and do a MAF cleaning, Another big part that causes a P0171 is sparkplug wear, A worn sparkplug where the sparkplug gap is over …. 8K subscribers Subscribe 22K Share 2. I haven't figured out why yet so I want to bounce all the symptoms and what I've done so far past you all to see if there is a consensus on what might be going on. What Does Code P0171 Mean? OBD II fault code P0171 is a generic code that is most commonly defined as “System Too Lean- Bank 1”, and is set on gasoline engines when the PCM (Powertrain Control Module) detects that the air/fuel mixture is too lean. 0 82,000 miles runs ok but check engine light comes on has code p0171 erased the code but it came back one shop put in a new … read more Marvin K Principal Test technician Associate degree in applied 30 satisfied customers We have a ford ranger 96, w/2. (Or maybe used your own OBD scanner to extract the car faults). no other lean codes present. What are the Possible Causes of the Code P0171 Ford? Intake air leaks Faulty front heated oxygen sensor Ignition misfiring Faulty fuel injectors Exhaust gas leaks Incorrect fuel pressure Lack of fuel Faulty Positive. FORD CODE P0171 SYSTEM TOO LEAN BANK 1. Codes P0174, P0171, P0172 CHIHUAHUA4582 MEMBER 2003 FORD RANGER 6 CYL 2WD AUTOMATIC 108,083 MILES I use a code reader, and the results are codes P0174, P0171 (pending), P0172 (pending); also i/m monitors (4 incomplets): Catlyst; evap; 02 snsr; 02 htr. P0171 (Bank 1 lean), P0175 (Bank 2 rich) at sametime Original problem was running rough and no power with codes P0301, P0306, P0305 & P0306. Now the other day it came back. Well i can say check your mass air flow for any dirt in it and the EGR for any leaks. correct oxygen level in the exhaust Yes, an air leak is the most common cause for this code. These sensors have a very high failure rate once a vehicle has more than about 60,000 miles on the odometer or is more than five or six years old. has had about 1200 miles since the work and truck has 140,000. One of the most common trouble codes with the Ford Ranger is P0174. Code P0171 indicates Bank 1 of the engine has a lean fuel mixture. A little background truck had a cracked head now has 2 new heads 2 new 02 sensors complete upper gasket set, plugs, wires, vac lines, ran great after job still seams to although a little down on power. P0171 Trouble Code: System Too Lean Bank 1 Diagnosis. Ford Ranger P0171 Check Engine Code, Injector and …. 1998 Ford Ranger 3. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. P0171 definition: Bank 1 has too much air or not enough fuel (lean bank) Issue Severity: MODERATE– Extended driving with this code can cause internal engine. When I first got it, it had the P0171 code and was running a bit loopy, popped the hood and sure enough the hose to the pvc valve was disconnected. In plain English, this means that the PCM is adding fuel like crazy to even out the air/fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out. March 13, 2013 #1 truck showed codes P0171 , system too lean , P0174 , system too lean. 1983 - 2012 Ranger & B-Series - P0171 code - I've got a 2000 Ford Ranger 2. 99 Ford Ranger throwing out code p0171 Trying to get it to pass smog, throwing out code po171 - Nissan 2002 Altima question. Re: P0171/PO174 2003 Ranger Spay carb cleaner around the intake and see if it speeds up. Codes P0174, P0171, P0172: I Use a Code Reader, and the ">Codes P0174, P0171, P0172: I Use a Code Reader, and the. Go check all your hoses for crack/dry rot or leaks/holes. Ford Ranger P0171 Check Engine Code, Injector and Intake. Bad Oxygen Sensor Can Cause P0171 Ford Another probable cause for the P0171 Ford that we would like to cover is a bad oxygen sensor also known as the O2 sensor. I'm aware that P0171 means bank 1 is too lean. P0171 Ford Code: System Too Lean (Bank 1) Causes, Costs, Fixes. Plugged a code reader in when the check engine light came on and it said p0171. Codes P0174, P0171, P0172 CHIHUAHUA4582 MEMBER 2003 FORD RANGER 6 CYL 2WD AUTOMATIC 108,083 MILES I use a code reader, and the results are codes P0174, P0171 (pending), P0172 (pending); also i/m monitors (4 incomplets): Catlyst; evap; 02 snsr; 02 htr. Ford p0171 AND p0174 lean codes can also be set by a bad EGR differential pressure sensor. 0L auto I regularly get this code and my CEL illuminates. That fixed that problem for a while. The P0171 code indicates that the oxygen (O2) sensor on bank 1 sent a signal to the engine control module that the air-fuel mixture is too lean to be corrected. Little to no change, still runs rough. 5 and have replaced fuel filter maf sensor, iac sensor, fixed vacuum leaks, replaced fuel filter, checked fuel pressure it was a steady 38, replace all o2 sensors, and replaced spark plugs and wire but the code still continues to come back on what is causing it? Also if this helps. P0171 code definition System Too Lean (Bank 1) What the P0171 code means The P0171 OBD-II code means that, on the first bank of the engine, the fuel system is running weak. P0174 indicates that your Ford Ranger is either getting too much air or not enough fuel. P0171 definition: Bank 1 has too much air or not enough fuel (lean bank) Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. The exhaust leak should be close to the B1S1 O2 sensor. SOLVED: 99 Ford Ranger throwing out code p0171. co 👈===== How to Fix P0171 =====Engine Code P0171 Saving Repair. P0171 indicates that your Ford Ranger is either getting too much air or not enough fuel. Engine Code P0171 means that the engine air-fuel mixture is too lean. Catalytic converter glows red hot when driving, and the rough idle is consistent but smoothes out to around 8-900rpm when warmed up!. The truck will rev up and down from 500-1000 RPM when Im rolling in Drive. on February 26, 2017 I have a p0171 code on my ford ranger 2. But it is throwing codes P0171 and P0174. I'm aware that P0171 means bank 1 is too lean. When I first got it, it had the P0171 code and was running a bit loopy, popped the hood and sure enough the hose to the pvc valve was disconnected. I have changed the fuel filter, maf sensor ,PCv and 2 vacuum hoses, Checked for vacuum leaks. 5 and have replaced fuel filter maf sensor, iac sensor, fixed vacuum leaks, replaced fuel. P0171 and P0174 occur when the air/fuel mixture on the vehicle gets too lean. problem occured in last 200 miles. 9K views 11 months ago In the video, I complete. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. What do I need to do? How can I fix this codes, and i/m monitors? SPONSORED LINKS Do you. But it is throwing codes P0171 and P0174. It is pulling a P0171 code. P0171 = Lean on Bank 1 Which on a 4cyl means whole engine since it only has one Bank In OBD2 lingo Lean means the computer is having to open the fuel injectors longer than it has calculated to get O2 sensor voltage to average status, i. error code p0171 Posted by fred kinner on Feb 21, 2013 Find parts for your 1998 Ford Ranger SuperCab Check Price eBay 2 Answers Bob Legler Expert 70 Answers. The Infamous P0171 and P0174 codes troubleshooting alright, lately i have been experiencing this issue, i have taken out the MAF sensor, cleaned it with MAF Cleaner and also even tried replacing the MAF. FORD P0171 and P0174. # 3 03-16-2015, 07:21 PM JCooperpcola Ford Ranger Owner Join Date: Feb 2015 Posts: 61 Re: P0171/PO174 2003 Ranger Fuel pressure was 64psi. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. P0171 indicates that your Ford Ranger is either getting too much air or not enough fuel. In this video, I show you how I troubleshoot a Check Engine Light (CEL) / Diagnostic Trouble Code (DTC) P0171, System Too Lean Bank 1. system too lean(p0171)">2003 Ford ranger: 2. Engine Bank 1 is the same side of the. I have replaced all three O2 sensors and reset the dtc. In this video I have a Ford Ranger with lean codes on both banks, freeze frame indicates that the lean condition is happening at idle. PCM's Adaptive Fuel Strategy has reached its Rich calibrated limit for bank 1. P0171 issue - 2003 edge w/3. It indicates that your Ford Ranger is running lean on the bank two side of the engine. Check for other trouble codes. FORD RANGER 2000 Ford Ranger P0171 And P0174 Codes Have A 2000 Range 4x4r 4. 1983 - 2012 Ranger & B-Series - 2. 1983 - 2012 Ranger & B-Series - 98 ranger 4. This is a long time problem with this truck. 1983 - 2012 Ranger & B-Series - 2. Which on a 4cyl means whole engine since it only has one Bank. P0171 is a diagnostic trouble code (DTC) for "System Too Lean (Bank 1)". A Ford P0171 is a LEAN code fpr cylinder bank 1, and P0174 is a LEAN code for cylinder bank 2. When I first got it, it had the P0171 code and was running a bit loopy, popped the hood and sure enough the hose to the pvc valve was disconnected. Code P0171 indicates Bank 1 of the engine has a lean fuel mixture. 1999 ford ranger 4. From what I've also read its a simple fix involving checking the MAF sensor, o2 sensors, checking the intake, and a few other things. If it needs to be corrected more than that, the P0171 code will be stored. 0L V6 and about 70,260 miles and I got a check engine light. P0174 indicates that your Ford Ranger is either getting too much air or not enough fuel. Keep getting a code of P0171. P0174 indicates Bank 2 of the engine has a lean fuel mixture. correct oxygen level in the exhaust. jeff Join the Elite Explorers for $20 each year. Autozone says two codes: P0301 cyl 1 misfire detected, and P0171 system too lean bank 1. Browse Categories Answer Questions. i have done a quick scan of some hoses and cant seem to find anything, there are no noises either. The O2 sensors have the ability to correct a fuel mixture of +-15%. =====Claim your FREE engine code eraser 👉 https://free. I have a 97 Ranger 4x4, 4. P0171 (Bank 1 lean), P0175 (Bank 2 rich) at sametime. 1998 ranger 4. The fuel system is running weak or a vacuum leak exists near the engine. Code p0171 on 98 ford ranger Checked vacunm leaks none, changed mass air flow sensor, put new gas cap, air filter, new fuel filter , loses power on hills stalls at intersections. Does that sound right? Is it possible that some water / ice entered the fuel system somehow and clogged the injector? Vehicle is '98 ford ranger, 3. P0171 and P0174 occur when the air/fuel mixture on the vehicle gets too lean. They are both thrown when the oxygen sensors detect that there is not enough oxygen in the exhaust. P0171 is a LEAN code for cylinder bank 1 P0174 is a LEAN code for cylinder bank 2 That means your car is getting a lot of air and not enough fuel which will make the engine Misfire and rough idle. 2000 Ford Ranger P0171 and P0174 Codes CTURNOCK MEMBER 2000 FORD RANGER 6 CYL 4WD AUTOMATIC 204,000 MILES Have a 2000 Range 4x4r 4. co 👈===== How to Fix P0171 ===========Engine Code P0171 Saving Repair. 5 and have replaced fuel filter maf sensor, iac sensor, fixed vacuum leaks, replaced fuel filter, checked fuel pressure it was a steady 38, replace all o2 sensors, and replaced spark plugs and wire but the code still continues to come back on what is causing it?. I have a p0171 code on my ford ranger 2. FORD CODE P0171 SYSTEM TOO LEAN BANK 1. Codes P0174, P0171, P0172: I Use a Code Reader, and the. In the video, I complete testing for a check engine code of P0171 on my 2003 Ford Ranger. These codes commonly occur on many Ford vehicles, and are set when the powertrain control module (PCM) sees the air/fuel mixture is running too lean (too much air, not enough fuel). P0171 is a diagnostic trouble code (DTC) for "System Too Lean (Bank 1)". on February 26, 2017 I have a p0171 code on my ford ranger 2. Check these links for possible solutions OBD-II Trouble Code: P0171 System Too Lean (Bank 1) , OBD-II Trouble Code: P0302 Cylinder 2 Two Misfire Detected. FORD CODE P0171 SYSTEM TOO LEAN BANK 1. A Ford P0171 is a LEAN code for cylinder bank 1, and P0174 is a LEAN code for cylinder bank 2. P0171 definition: Bank 1 has too much air or not enough fuel (lean bank) Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. I have a 97 Ranger 4x4, 4. You may see a cylinder misfire code or fuel injector-specific code with P0174. 2002 Nissan Altima; Nissan Altima Car and Truck 2002 ford ranger 2. 1983 - 2012 Ranger & B-Series - 1998 ranger 4. OBD-ii Code P0171 definition: Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). FORD CODE P0171 SYSTEM TOO LEAN BANK 1. On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. Troubleshooting P0171 And P0174 (Ford 4. OBD-II Trouble Code: P0171 System Too Lean (Bank 1) , OBD-II Trouble Code: P0302 Cylinder 2 Two Misfire Detected The truck is new to me, I bought it in November last year and since I've had it, it's only ever had a regular oil change and been in the shop last month to replace a cracked ring when my air ride suspension went out. P0171 and P0174 occur when the air/fuel mixture on the vehicle gets too lean. A lean code or codes suggest that there surely is too-much air in the exhaust. EASY FIX If you have Ford, your engine light is on and you have code P0171 in this video we will Shop the Auto Repair Guys store P0171 Trouble. I have a p0171 code on my ford ranger 2. SOLVED: 2002 ford ranger 2. # 3 03-16-2015, 07:21 PM JCooperpcola Ford Ranger Owner Join Date: Feb 2015 Posts: 61 Re: P0171/PO174 2003 Ranger Fuel. P0171 – Fuel trim (FT) system too lean, bank 1 (Ford. These codes commonly occur on many Ford vehicles, and are set when the powertrain control module (PCM) sees the air/fuel mixture is running too lean (too much air, not enough fuel). I would like to eliminate a few items. A lean code or codes suggest that there surely is too-much air in the exhaust. SOLVED: Ford Ranger Bank 1 Lean. Anyone else have expe : Ford Ranger. In fact, this word is part of the trouble. 3 codes po171/ andpo301 #1 ,. I changed out the ignition coil, and all plugs, verified wires good. 200 ford expedition diagnostic code P0171 PO171- System too lean (Bank1) Most likely a failed oxygen sensor on the passenger side, if you never changed the front or upstream sensors at 100,000 miles, as preventative maintenance Do both sides,clear codes & if they come back, check for vacuum leaks. P0171 Engine Code in 2 Minutes. 200 ford expedition diagnostic code P0171 PO171- System too lean (Bank1) Most likely a failed oxygen sensor on the passenger side, if you never changed the front or upstream sensors at 100,000 miles, as preventative maintenance Do both sides,clear codes & if they come back, check for vacuum leaks. P0171 issue - 2003 edge w/3. Bad Oxygen Sensor Can Cause P0171 Ford Another probable cause for the P0171 Ford that we would like to cover is a bad oxygen sensor also known as the O2 sensor. P0174 and P0171 (fuel trim lean bank one) are the most. 0l v6 lean trouble codes p0171 and p0174 2 Related Topics Ford Motor Company 8 comments Add a Comment The truck sounds like it could be a diesel motor. P0171 Trouble Code: System Too Lean Bank 1 Diagnosis. 3L w/ P0171 code - I have had this truck for about 6 months now. When I accelerate, its fine, but when I let off the gas and roll it starts reving again causing the truck to shake. Engine Bank 1 is the same side of the engine as Engine Cylinder 1. P0171 indicates that your Ford Ranger is either getting too much air or not enough fuel. 5 and have replac">I have a p0171 code on my ford ranger 2. Last edited by FUzzyBUnny; 03-15-2015 at 07:41 PM. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154. OBD-ii Code P0171 definition: Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). 0l at dtc p0171 p0174 This is a long time problem with this truck. P0171 = Lean on Bank 1 Which on a 4cyl means whole engine since it only has one Bank In OBD2 lingo Lean means the computer is having to open the fuel injectors longer than it has calculated to get O2 sensor voltage to average status, i. Yes, an air leak is the most common cause for this code. ford ranger rough idle p0301 and p0171. 1999 ford ranger 4. 3 codes po171/ andpo301 #1 , changed plugs/wires/upstream oxygen sensor. 5 and have replaced fuel filter maf sensor, iac sensor, fixed vacuum leaks, replaced fuel filter, checked fuel pressure it was a steady 38, replace all o2 sensors, and replaced spark plugs and wire but the code still continues to come back on what is causing it? Also if this. A Ford P0171 is a LEAN code for cylinder bank 1, and P0174 is a LEAN code for cylinder bank 2. 2000 Ford Ranger P0171 and P0174 Codes. P0171 Trouble Code: System Too Lean Bank 1 Diagnosis Big Dog50001 Automotive 85. My Check Engine Light Came on This Morning P0171 Code?. If you've been researching the P0171 and P0174 diagnostic trouble codes for any length of time, you've seen the term Lean (and probably Rich) along the way. You might also want to have your fuel pressure checked. A Ford P0171 is a LEAN code fpr cylinder bank 1, and P0174 is a LEAN code for cylinder bank 2. bank 1 and 2 does anyone know what this means or have had the same issue? guy told me it was the oxygen sensors. Welcome to TRS. These instructions will work on 98 to 2008 Ford Rangers with 3. co 👈===== How to Fix P0171 =====Engine Code P0171 Saving Repair. P0171 Ford – Meaning, Causes, Symptoms, & Fixes. =====Claim your FREE engine code eraser 👉 https://free. If there are no intake leaks, the next step is to replace the air filter and clean the airflow meter. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Your car or truck has either a P0171, P0174 lean fault code or both stored in the pc, these codes derive from Oxygen Sensor (O-2) readings. Ford Ranger P0171 OBDII Trouble Code Diagnosis. Engine Code P0171: System Too Lean (Bank 1). Ford Ranger: I have a 1999 ranger xlt 3. These codes commonly occur on many Ford vehicles, and are. Inspect your COP boots and wire if you change your plugs, use dielectric grease in the boots and anti-seize on the plug thread. 1M views 4 years ago In this video, I show you how I troubleshoot a Check. and also clean your MAF (mass air flow sensor)located on the air box. Ford Ranger P0171 Check Engine Code, Injector and Intake Gasket Replacement Chasing Mustangs 1. But It Is Throwing Codes P0171 And P0174. Code P0171 Ford Tech Notes If the P0171 is combined with the P0174 code, the problem is likely caused by an intake leak or the Intake Plenum Gasket and seals. After driving the vehicle, then a restart, So the code was pending during your driving, and the restart made the code come to full maturity, Check for vacuum leaks especially the PCV hose making sure its not collapse, and do a MAF cleaning, Another big part that causes a P0171 is sparkplug. with P0171 and P0174 codes, lean fuel mixture banks 1 and 2. P0171: System Too Lean Bank 1. =============================Claim your FREE engine code eraser 👉 https://free. The P0171 code indicates that the oxygen (O2) sensor on bank 1 sent a signal to the engine control module that the air-fuel mixture is too lean to be corrected. 0l v6 lean trouble codes p0171 and p0174">1998 Ford Ranger 3. Code P0171 Ford Tech Notes If the P0171 is combined with the P0174 code, the problem is likely caused by an intake leak or the Intake Plenum Gasket and seals. A little background truck had a cracked head now has 2 new heads 2 new 02 sensors complete upper gasket set, plugs, wires, vac lines, ran great after job still seams to although a little down on power. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. PO171/174 BOTH B1/B2 1999 F350 6. You may see a cylinder misfire code or fuel injector-specific code with P0171. You may see a cylinder misfire code or fuel injector-specific code with P0171. Ford Ranger: P0171 and P0174 Diagnosis. The P0171 code indicates that the oxygen (O2) sensor on bank 1 sent a signal to the engine control module that the air-fuel mixture is too lean to be corrected. P0171 Fuel trim lean Bank 1. 0 code p0171 - Hello, looking for some insight or experience with this one. 1998 Ford Ranger 3. I have read a lot about this dtc and it really seems to poiint to an intake manifold leak problem, although there is a lot written about the 1997 model but not the 1998. What Does Code P0171 Mean? OBD II fault code P0171 is a generic code that is most commonly defined as “System Too Lean- Bank 1”, and is set on gasoline engines when the PCM (Powertrain Control Module) detects that the air/fuel mixture is too lean. Ford Ranger P0171 Check Engine Code, Injector and Intake Gasket. P0171 and P0174 codes troubleshooting. Ford Ranger P0171 Check Engine Code, Injector and Intake Gasket Replacement Chasing Mustangs 1. Got it pulled at a parts store again and it was P0171 (lean bank 1) again. Code p0171 on 98 ford ranger. Here are the steps you can take to diagnose P0171 in the Ford Ranger. FORD P0171 and P0174. P0171 Ford Code: System Too Lean (Bank 1) Causes, …. 2000 ford ranger 3. 0 Engine light code is p0171 and p0174 System too lean bank 1 and 2 Already replaced all three os2 sensors … read more Pavlin Koev Diagnostic Technician High School or GED 3,485 satisfied customers Ford F350 Super Duty: 1999 F350 6. Plugged a code reader in when the check engine light came on and it said p0171. 1983 - 2012 Ranger & B-Series - 2. OBD-II Trouble Code: P0171 System Too Lean (Bank 1) , OBD-II Trouble Code: P0302 Cylinder 2 Two Misfire Detected The truck is new to me, I bought it in November last year and since I've had it, it's only ever had a regular oil change and been in the shop last month to replace a cracked ring when my air ride suspension went out. 1983 - 2012 Ranger & B-Series - 98 ranger 4. The O2 sensors have the ability to correct a fuel mixture of +-15%. P0171 is a LEAN code for cylinder bank 1 P0174 is a LEAN code for cylinder bank 2 That means your car is getting a lot of air and not enough fuel which will make the engine Misfire and rough idle. In OBD2 lingo Lean means the computer is having to open the fuel injectors longer than it has calculated to get O2 sensor voltage to average status, i. com/p0171-ford-ranger/#Possible P0171 Fixes" h="ID=SERP,5719. 2000 Ford Ranger P0171 and P0174 Codes CTURNOCK MEMBER 2000 FORD RANGER 6 CYL 4WD AUTOMATIC 204,000 MILES Have a 2000 Range 4x4r 4. (Or maybe used your own OBD scanner to extract the car faults).