Tools needed for diagnosing advanced P0171 code causes: OBD II scanner or code reader. 0 votes . Causes. New heads and gaskets. My 2002 Ford Taurus Idles Rough And Hesitates When Accerating. P0141 2002 Ford. 2. Web this diagnostic code is commonly found in ford vehicles such as the explorer, ranger, f150, escort, and mustang. Jump to Latest. P0171 indicates that your Ford F150 is either getting too much air or not enough fuel. Search Fixya. 0 hour of labor. Trucks - Louis-Philippe Edmonston 2002-11 Haynes Ford Focus 2000 and 2001 - Jay Storer 2002 Inside this manual the reader will learn to do routine maintenance, tune-up procedures,. Engine . I have a 2001 Ford Escort ZX2 with codes P0171 and P0352 coming up on the computer. 2. The most common reasons for a P0171 code are a fuel pump issue and a faulty mass airflow sensor. I have also replaced the PCV valve and hosing so I doubt there are any vac leaks from that unless the new PCV valve is a dud. The P0171 is bank one of the engine is running lean,usually caused by a vacuum leak, P0420 is catalytic converter efficiency code. cleaned maf, changed fuel filter and pcv valve. 0 hour of labor. 2002 f150 throwing p0171. P1131 Ford Code:. 2002 Ford F150: service engine light. ISSUE:. Most auto. The Powertrain Control Module ( PCM) monitors the fuel tank pressure. 0l spi engine may exhibit higher than normal idle speed, runs rough at idle and/or diagnostic trouble code (dtc) p0171. Most auto repair shops charge between $75 and $150 per hour. Solution to my Code P0171, P0174 Problem. SOURCE: Ford windstar OBD II code P1537/38, P0171 and P0420 It could all be related. 0 hour of labor. 9L engine in 1990. I have been fighting these 2 codes: P0171: Fuel System Too Lean (Bank 1) P0174: Fuel System Too Lean (Bank 2) For the last month or 2, I've been doing extensive research into these codes (which yes, includes the search function on this forum). Labor: 1. I can pull a plug wire off cylinders 1 through 3. There is a TSB (Technical Service Bulletin) from Ford Motor Company in regards XXXXX XXXXX situation. Need help 2002 ford f150 4. Re: 2002 ford F-150 Code P0171. This 2000 ZX2 was idling rough and throwing a p171 code (bank 1 too lean). The oxygen sensor alerts your system when the condition is too lean meaning there’s too much oxygen in the exhaust. Question type: Maintenance & Repair. What is the Cost to Diagnose the Code P0303 Ford? Labor: 1. System Too Lean (Bank 1) A P0171 code indicates the air-fuel ratio entering your engine block is not ideal. Find auto repair near me. 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). On wednesday my car started running rough when I started it in the cool morning and has. codes that show upFord code p0401 p1151 2002 egr taurus p1401 dpfe p1131 p0171 expedition p1518 flow low codes sensor rough 2l valve Ford p1131 code expedition. I had a rotted driver's side cat that was leaking and threw a P0171 code on my 2002 F-150 4. 0l spi engine: higher than normal idle speed, runs rough at idle and/or diagnostic trouble code (dtc) p0171 some 2000-2002 focus & escort equipped with a 2. 0L EFI-SPI Rough Idle, Stalls, P0171 DTC: The engine speed oscillates @ idle. P0171 code. Replaced the fuel filter and it cleared up. What is the Cost to Diagnose the Code P0301 Ford? Labor: 1. Taking your vehicle to a qualified repair shop would be your best bet . 4. I replace the air filter, removed and cleaned the MAF sensor and cleaned the intake piping- there was a light coating of dust in it. 2011 • 1996 Ford Escort 4 Door. P0171/P0174 Diagnostic Theoryfor Shops and Technicians. Read full answer. , 87000 miles, have recently had error codes P0171 and P0174, had the upper and lower intake manifold. the check engine light stayed off for a few miles but suddenly the transmission downshifted and the light was back on. Took the car to Cottman and was told the problem is the Pressure Control S. PCV valve? w/pictures - I have a 2001 F150 4. p0171 My service engine light soon came on in my 2002 Ford F150, approx. seems to be pretty common by what i see online. Canadafix. The symptoms and causes will help you determine the exact issue and how to fix it. A clogged or broken car fuel injector. 0 ElbowFord P0420 definition : Catalyst system efficiency below threshold (Bank 1) Issue Severity: MODERATE – Extended driving with this code can cause internal engine damage. Low fuel pressure. , 87000 miles, have recently had error codes. 2002 ford explorer code p1131Trouble code p1131 ford expedition Got a 2002 ford explorer 4. PCM software needs to be updated. P0303 + P0171. . I hooked up a scanner to the OBDII port and you could see the O2 sensor at 0 or very low voltage and not switching and the fuel compensation maxed out which indicates a lean. 1997-2002 ESCORT 1998-2003 ESCORT ZX2 . Sparky's answersReplaced egr valve and still get code p0401? Egr ford f150 test dtc p0401 valve prostreetonline2002 f150. 1 answer. The Oxygen Sensors are located in the exhaust pipe and require a special socket to remove and replace. So your car’s CEL (always check Engine Light) is on and also you had the codes scanned at a local parts shop. Code P0455 Ford Tech Notes. Nothing I just bought. the check engine light stayed off for a few miles but suddenly the transmission downshifted and the light was back on. 15 gm/s). The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Faulty Ignition Coil. Oxygen Sensor. trouble codes. Step 2 – Tighten the Spark Plugs Connecting Wires. Faulty Fuel Injector. Faulty Ignition System Components. This article will help you to diagnose diagnostic trouble code P0171 (System Too Lean Bank 1) and/or P0174 (System Too Lean Bank 2) on your Ford, Mercury or Lincoln 4. OBC code P0171 on a 2000 Ford Escort sedan 2. The most common cause of the P0171 code – and the P0170 and P0173-P0174 codes – is unmetered air entering the combustion system. These codes commonly occur on many Ford vehicles, and are set when the powertrain control module (PCM) sees. OBD-II Trouble Code P0171 (excessively rich fuel system) OBD-II Trouble Code P0172 (excessively lean fuel system) What the P0191 code means. 0l idles ok for aprox 5 secs. Auto shop owner. P0171 - OBD-II Trouble Code Fuel System Too Lean (Bank 1) Get back on the road. I am troubleshooting a problem with a 2002 e350 van with the v-10 motor. While DTC code P0171 and its closely related cousin, P0174, are two of the most common codes to afflict Ford F150 models, almost all Ford models are equally likely to suffer the effects of these codes at some point, and particularly Ford applications that have done more than about 60 000 miles or so. ”. 3l vortec 4wd fires right up no problem but idels a lil rough. changed the IAC and now have this code with a P0171 lean bank added. A stuck PCV valve. What is the Ford P1131 code? If you own a Ford and the engine code P1131 is displayed, then there is an issue with the O2 sensor. We use cookies to give you the best possible experience on our website. 0 zetec automatic trans the car idles fine but when u turn the ac on and put it in gear the whole car starts to vibrate. No +1. intake manifold. There are a couple things that can cause this. Quick links. This 2000 ZX2 was idling rough and throwing a p171 code (bank 1 too lean). A vacuum leak. Ford: 1990-97 Thunderbird 1990-99 Mustang, Taurus SHO 1991-99 Crown Victoria, Escort, Taurus 1992-94 Tempo 1993-97 Probe 1995-99 Contour Lincoln-Mercury : 1990-97 Cougar 1991-99 Continental, Grand Marquis, Sable, Town Car, Tracer 1992-94 Topaz 1993-98 Mark VIII 1995-99 MystiqueWhat is the Cost to Diagnose the Code P0141 Ford? Labor: 1. The code stand for P0171 Fuel System Too Lean Bank 1. 4. P1127 Exhaust Not Warm Enough - Downstream O2 Sensor Not Tested - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code. 85240 Answers. Este código de falla en las camionetas Ford lo que nos indica es que hay una combustión incompleta. - Ford 1999 Escort question. Qué significa code DTC P0171 Ford en español. I have a 1999 Ford Escort that is throwing code p0171. Excessive fuel pressure. High School or GED. P1123 Throttle Position Sensor In Range But Higher Than Expected. . Look for a vacuum leak at the intake around the. Leaks in the exhaust system can cause. P1152 = Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. lite on, code reader says P0171, system too lean bank 1. Codes reoccur at startup w/ Fuel ecc. I have also replaced the PCV valve and hosing so I doubt there are any vac leaks from that unless the new PCV valve is a dud. Once locating the oxygen sensor, remove it carefully and install a new better sensor. It is common for most auto repair shops to charge between $75 and $150 per hour. cleared codes drove 30-40 miles and still get same codes runs great but rough idle 2002 Ford Ranger Open Questions:What does the P0171 code mean? A Code P0171 or system too lean bank 1 means either too much oxygen or too little fuel in the exhaust. 1999 ford escort zx2: ac. i''m. Si necesita corregir la mezcla de aire y combustible más que eso, se almacenará el código P0171. The word ‘lean’ refers to the deviation in the ideal air-to-fuel ratio, which is 14. Check Details The P1131 code indicates that the heated oxygen sensor contains a failure in the upstream flow. cleaned the MAF sensor and changed the coolant sensor. bad injector maybe? one ticks louder than the others. Check the fuel pressure. . This line goes toward fire wall, winding around past harmonic balancer. #1 · Nov 3, 2007. After retreiving the codes with my reader, I checked the condition of the Spark Plugs, ignition wires and vacumn lines. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. 27,894 satisfied customers. You may see a cylinder misfire code or fuel injector-specific code with P0171. Most auto repair shops charge between $75 and $150 per hour. P1131 p1132 ford P1131 odb question Ford p1151 p1131 p0171 codes 2002 p0401 reading getting egr am lean refer commonly condition four other. This process works to reduce tailpipe emissions. Carburetor or throttle body cleaner. What could be causing the system to be too lean or ignition coil B/primary or secondary circuit malfunction. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. A code P0171 may mean that one or more of the following has happened: * The MAF (Mass Air Flow) Sensor is dirty or faulty. The same codes show up. Causes For P0171 Chevy Code. O2 sensor voltage is high when exhaust is rich and low when exhaust is lean. 1996 ford escort, p0171 code and replaced all vacuum lines,. Ford P0171 OBD-II Trouble Code Definition: P0171 Fuel Trim System Lean Bank 1 P0171 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0171 System Too Lean What does the code mean?. If the engine speed fluctuates enough to cause the Crankshaft Position ( CKP) sensor signal to vary, the. getting Ford P0171 & P0174 Lean Codes on 2002 ford f-150 harley davison I changed MAFS and fuel fiter checked for leaks none also had bank 1 and 2 checked working right thinking about changeing the DP. 1998 escort, code p0171. Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. This 2000 ZX2 was idling rough and throwing a p171 code (bank 1 too lean). Learn more about causes,. 1,507 satisfied customers. 0 codes p0300 p0302 p0316. . 99 ford zx2 2. I. Have a 2002 Ford Escort 2. 2. Cleaned MAF sensor, throttle body and air intake sensor, new IAC valve, new air and fuel filters, new PCV valve. po171 Secondary. I removed and cleaned the MAF sensor (it looked clean, but I used the MAF spray anyway), but the code came back after a day. The test fails when the adaptive fuel tables reach a rich calibrated limit. The location of this problem usually stems from the. I am getting the following trouble codes. P0171. The ECM monitors O2 sensor voltage and determines if exhaust is lean or rich. I have a 1998 Ford Escort zx2. After diagnostic when trying to buy used car there are codes P0171 and P0174 no engine light on. 20 miles), but mostly stays at cold, except when. (the one closest to the engine on bank 1) 6 Answers. What Does Ford F-150 Code P0304 Mean? Ford F-150 P0304 definition: Cylinder 4 Misfire Detected Issue Severity: SEVERE – Stop driving immediately. Engine . What Does Code P0136 Mean? P0136 definition: H02S2 Heater Control Circuit Low (Bank 2, Sensor 2); Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. It sounds to me like the oxygen sensors (between the engine and catalytic converters) should be replaced. 0 hour of labor. koda2000 said: if it was the fuel pump I would think you'd see P0171 along with P0174. Skip to content. Leaking Port gaskets in the lower to upper intake mounting area. Search Fixya. 2. . Common causes.