P0171 toyota camry

Fix P0171 Error code. Bank 1 Sensor 1 - generic code to most vehicles. I run through all the things I did to address the P0171. Each car is different but I g...

P0171 toyota camry. 535. 65K views 3 years ago. P0171 System too lean bank 1 Changing Oxygen sensor Changing PCV valve ...more. P0171 System too lean bank 1Changing Oxygen sensor Changing PCV valveLean condition...

Labor: 1.0. To diagnose the P0171 1998 Toyota Camry code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per ...

The P0171 diagnostic trouble code in Toyota vehicles stands for "System Too Lean (Bank 1).". This code suggests that the air-to-fuel mixture in the engine's bank 1 is leaning more towards air than the ideal air-fuel ratio, which should typically be about 14.7 parts air to 1 part fuel. In simpler terms, there's either too much air or not ...My 2003 Camry LE 2.4L with 310,000 is throwing code P0171 and has hesitation under load. I have done a bunch of diagnostic stuff but can't pin point the problem. ... Car Symptoms (2003 Toyota Camry LE 2.4L 4 cylinder): Initial Presentation - hesitation during higher engine loads. Could be accelerating, or over a certain speed. Started by ...Hard start and p0171. I have a 2007 Camry with 2.4, sometimes when it’s hot it will have a long crank or hard start, I replaced fuel pump with no luck, my long term fuel trim is at 10%, short term fluctuate all over, if I unhook battery to clear fuel trims it runs terrible until the long term gets back to 8-10%, I’m leaning towards leak at ...Aug 24, 2022 · If the P0171 is combined with the P0174 code, it's highly likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the Mass Air Flow (MAF) Sensor. Toyota Corolla and Matrix P0171 in cold temperatures. The 2004-2008 Toyota Corolla and Matrix with the 1.8L 1ZZ 4-cylinder can throw a check engine light when it is cold, the code stored being P0171 – System too lean. The tricky part with this malfunction is how difficult it is to catch acting up – by the time the auto mechanic has pulled ...Toyota 2004 Camry le v4 and diagnosing p0171 lean. Customer Question. condition looking at live data... Have. Toyota 2004 Camry le v4 and diagnosing p0171 lean condition looking at live data cold start is good went from open to cl etc rose temp to operating temp to 90c bit iat temp is around 20c it slowly warms up but does this need to match ...

A few weeks ago, my CEL came on. The dealership pulled a P0171 code and told me that the MAF and charcoal canister needed to be replaced (said the latter had a spider's nest in it but there's no code). (Estimate says: MIL DTC P0171 system lean Mass Air Flow Sensor Open.) I looked around on this forum and found info on cleaning the MAF, which I did.(the codes from my OBDII are: P0087, P0171, P0174, P0191) they showed up all at once. ... ToyotaNation Forum is a community dedicated to all Toyota models. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more! Full Forum Listing. Explore Our Forums.MEMBER. 1999 TOYOTA CAMRY. 4 CYL. FWD. AUTOMATIC. 149,000 MILES. I have 99 camry 4 cyl that has been sitting about 21 months just cleaned and painted it getting it ready to drive. The problem is I get a p0171 code and it stinks. I replaced the o2 and ect sensors also put new fuel filter in. Cleaned the throttle body with intake cleaner.Labor: 1.0. To diagnose the P0171 2011 Toyota Camry code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per ...The Toyota Camry has long been a popular choice among car enthusiasts and everyday drivers alike. Known for its reliability, comfort, and fuel efficiency, the Camry has earned its ...

Camry toyota p0401 2001 1997 diagnostic blue carCamry p0171. Hight quality cars: 1997-2001 toyota camry p0401 diagnosticTroubleshooting 2007 toyota camry check engine light: p0171 code q&a Camry toyota p0171 cargurus helpful mark maf replaced intake cleaned plugs se codeCamry 2007 p0171 toyota engine check light justanswer cylinder lean.In Summary. The P0171 lean code is a common occurrence in Toyota vehicles, indicating bank 1 is running an excessively lean air/fuel mixture. Potential causes range from intake leaks to fuel system components to sensor issues. Proper diagnosis is crucial before replacing parts.I have done all usual p0171 stuff to no avail the code comes and goes intermittently. like it will clear itself off without me clearing it. come back to then go back off ect.. ... Camry 3rd and 4th Gen '92-'01, Solara '99-'03 ... toyotanation.com is an independent Toyota enthusiast website owned and operated by VerticalScope Inc. Content on ...2013 Toyota Highlander LTD with check engine light on, TRAC OFF light on, codes P0171, P0174 engine 2GR-FE V6

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How To Fix Toyota P0138 Code O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)O2 Sensor removal tool on Amazon: https://amzn.to/3w6vqdACauses of a Toyota P013...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Contact details of Vital Records departments of local executive agencies of the RK. 8-716-46-2-10-67, 2-23-06. Stepnogorsk, 4th microdistrict, building 1. 030700, Aktobe region, …But while driving it was threw a P0171 / P0174 after about 3 miles ... ToyotaNation Forum is a community dedicated to all Toyota models. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more! Show Less . Full Forum Listing. Explore Our Forums.Most common cause of this code is vacuum leak in your intake system....sure there are other possible problems too....

Labor: 1.0. To diagnose the P0171 1998 Toyota Camry code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per ...P0171 Toyota Camry 2003. Camry p0171 p0171 code p0174 diagnosis obdii codes 4l camry corolla toyota p0171 body 2004 got solutions auto engine throttle 2006 blues parts remove car housing intake kit air cover toyota p0171 camr. In this video, I show you how I troubleshoot a Check Engine Light (CEL) / Diagnostic Trouble Code (DTC) P0171, System Too Lean Bank 1. The exact vehicle in ... The type 2az. I have a Code p0171 and after 10 minutes comes p0420 Code. I checked the fuel pump in good condition and is very suitable pressure. Note I replaced the oxygen sensor Bank 1 and Bank 2. Please help me thank you very much. Vehicle: 2007 toyota camry engine size 2.4. code-p0171-system. check-engine-light-on.Repair Manuals: https://shrsl.com/3zwnv https://sovrn.co/amfaf3n Fix it Angel EBAY STORE: https://ebay.us/OE6UsK repair smith https://fxo.co/1284793/fixit...Labor: 1.0. To diagnose the P0171 2007 Toyota Camry code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per ...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code TOYOTA P0113 Saving Repai...Toyota Passenger and Sports Car Forums. Camry and Solara Forum. Camry 3rd and 4th Gen '92-'01, Solara '99-'03. 97 Camry LE, 4Cyl - CA Smog Fail - P0401 \ P0171. Tags 0171 0401 camry obdii smog. Jump to Latest Follow 1 - 10 of 10 Posts ...P0171 1999 Toyota Camry - 0 votes . 272 views. asked Jul 22, 2018 by anonymous. Got the check engine code P0171. There are a few causes for this code. ... Vehicle: 1999 Toyota Camry CE 2.2L p0171; check-engine-light; 1 Answer. 0 votes . answered Jul 23, 2018 by Reynaldo (13.3k points) P0171 Fuel trim lean Bank 1 ...02 DTC that caused freeze frame data Trouble Code P0171 triggered Freeze Frame. Code Def - System Too Lean Bank 1 03 Fuel System Status Closed loop - using all oxygen sensor(s) as feedback for fuel control 04 Calculated Engine Load Value 19.2 % 05 Engine Coolant Temperature 91 °C, 196 °F 06 Short Term Fuel Trim Bank 1 18.8 % 07 …

after repairing my P0420 code, another popped up Po171, I'm certain the gasket in the exhaust manifold is causing this. Im using my shop vac in the blow mode...

Toyota / Camry / 1999 / P0171 System Too Lean (Bank 1) P0171 System Too Lean (Bank 1) 1999 Toyota Camry. Asked by camrylove in Jackson Heights, NY on . July 21, 2013. I have a 1999 Camry LE 5S-FE and it threw a P0171 code. I tested for vacuum leaks (visually and using a can of carb cleaner), did not find anything. What can I do next?Cracking the Mysterious P0171 Code in Toyota Camry. In the vast realm of car maintenance, the enigmatic P0171 code holds the power to baffle even the most seasoned drivers. Encountering this code on your Toyota Camry can leave you scratching your head in bewilderment, but fear not! Our comprehensive guide is here to unravel the secrets behind ...By Vlad Samarin, Updated: July 10, 2021. The OBDII trouble code P0171 - System Too Lean (Bank 1) means that the engine air-fuel mixture is too lean, or there is too much air and too little fuel. Driving a car with the code P0171 can cause more damage to the engine over time, as when the engine runs lean, the combustion temperature is higher.P0171 Toyota Check Details Common toyota dtcs: c1201, p0440, p0400. Toyota c1201 code engine p2197 2010 wash underbody thru occurred going car source justanswerC1201 source P0171 toyota.. Toyota camry p0171 obd code Check Details toyota avensis fault code c1201 - Avensis Club - Toyota Owners Club Check Details Engine code c1201 toyota Check DetailsMy 2004 Camry has a P0171 code. I reset the code, and the after two short drives, the CEL was back on and the code returned. I've checked for vacuum leaks and found none. ... ToyotaNation Forum is a community dedicated to all Toyota models. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more! Show Less .I got the P0441 code first and then after a week or two of driving I got the P0171. Both codes are currently present. The most noticeable symptom is the idle goes from 2k to 1k and back up again when warming up. ... ToyotaNation Forum is a community dedicated to all Toyota models. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and ...Kaiju Administrator MDT Platinum Contributor. If you get a 2013 Toyota Camry with codes P0171, P0441 and P0455 stored in the computer, then check the EVAP purge solenoid located next to the air filter box housing. Let the engine idle and listen to the valve for a slight hissing sound (of air being sucked in), this is a sign that the valve is ...P0300, p0301, p0302, p0304, and p0171. The last few weeks I have been dealing with my 2003 corolla s 5 speed with 186,000 miles and its multiple issues that popped up all at once. I live in western WA and we had over 110⁰ degree weather for the first time in history, well despite what most other forum posts say about p0171 and cold …2004 Corolla P0171 code (system to lean) I have a 2004 Toyota Corolla CE with 58,000 miles on it and the check engine has came on recently. It is a 5 speed manual. Right before the light came on, I noticed that the car would idle a litte low, causing the car to vibrate a little. I took it to autozone and it came up as P0171.

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02 Camry- P0171 System too lean bank 1 code- Fix to pass inspection I have have an 02 Camry that that has had this problem for awhile, but I used to take the train to work so I only used for the 5 min drive to and from the train station now I …P0171 2007 Camry. I have a 2007 Camry that has a P0171 code. I have checked for vacuum leaks at hoses and intake. I have the capability of reading live data. I am reading voltage on 02 Sensor B1S2 but show no voltage on sensor B1S1, which I assume is the O2 sensor on top of the manifold I also assume I should be showing some voltage here if all ...2 Answers. If your computer logged both P0171 and P0174 codes, concentrate on those components affecting all cylinders, like a MAF sensor, a clogged fuel filter, or issues with a fuel pressure regulator. Otherwise, concentrate on the side of the engine represented by your diagnostic trouble code. 2 people found this helpful. Thanks for the advice.The cost to diagnose the P0171 2009 Toyota Camry code is 1.0 hour of labor. 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. Most auto repair shops charge between $75 and $150 per hour.P0171 Toyota; Subir. Códigos OBD2 más consultados. Política de privacidad. Este sitio utiliza cookies propias y de terceros para obtener información estadística y mostrarte publicidad personalizada. Al navegar por nuestro sitio o utilizar nuestros servicios, aceptas su uso.22 posts · Joined 2012. #1 · Apr 14, 2015. hi I have a 2010 Toyota Camry Hybrid which is now throwing up a P0171 code, I also have a scangauge as an accessory that measures fuel economy, on my scanguage my fuel econony is very good, just like when i first got the car but the built in dash gauge on the camry the fuel economy is poor, I …Aug 24, 2022 · If the P0171 is combined with the P0174 code, it's highly likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the Mass Air Flow (MAF) Sensor. DaveJM on March 28, 2022. Hello, before you start looking at sensors and such, it's important to understand what this code means. This means the fuel mixture has been detected to be "lean" - meaning most likely that there is too much air getting into the engine without the engine being able to provide enough fuel to make the mixture proper. ….

After searching related forums I have not found any with my exact symptoms so I thought I'd ask. We just bought a 2002 Camry with 72,000 miles 2 months ago. It now has 74,000 and while on vacation the CEL came on. I took it to a mechanic who got the code P-0304 off the computer. He swapped the number 4 ign. coil pack with the number …TOYOTA CAMRY P CODES (POWERTRAIN) P0100 - P0199 P0171 ... The trouble code P0171 refers to an issue with the air-fuel mixture in the engine's Bank 1, which contains the oxygen sensor for cylinders 1, 3, 5, and 7 in a V-configuration engine. When the code is triggered, it indicates that the air-fuel mixture is too lean, meaning there is an ...The ever-popular, multi-award-winning Yaris* nameplate has reached 10 million cumulative worldwide sales, performance which earns it a place alongside Toyota's illustrious eight-figure achievers - Corolla, Camry, RAV4, Hilux and Land CruiserP0171 and P0300 after throttle body cleaning. Have had the code P0171 for a while but now check engine light came on. P0300 as well now. Just cleaned the throttle body two days ago and idle was smooth. Now two days later, it was dropping to 750 and jumpy. After the light came on. I went to the bay and it smelled like gasoline vapors.Specialising in Toyota Hybrid carsToyota Camry Hybrid 2015 shut down and was towed into the shop. Replacing a malfunctioning water pump and monitoring radiat...About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...Since engine parameters look normal at operating temp and freeze frame shows P0171 at ECT 161 could be IAC is allowing too much air during warm up. Include IAC cleaning along with TB. ... ToyotaNation Forum is a community dedicated to all Toyota models. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more!P0301 P0303 P0171 problems. Jump to Latest Follow ... ToyotaNation Forum is a community dedicated to all Toyota models. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more! Show Less . Full Forum Listing. Explore Our Forums. P0171 toyota camry, The cost to diagnose the P0171 2009 Toyota Camry code is 1.0 hour of labor. 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. Most auto repair shops charge between $75 and $150 per hour., To diagnose the P0171 2008 Toyota Camry code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per hour., Para darle solución al código DTC P0171 en un vehículo Toyota podrías hacer lo siguiente: Revisa la válvula PCV (Positive Crankcase Ventilation Valve) y las mangueras de vacío. Puedes cambiar si es necesario. Inspecciona el Sensor de flujo de masa de aire (MAF) ya que puede estar sucio. Límpialo y sécalo por completo antes de instalarlo., 2000 camry 2.2L with p0171 code replced air filter;plugs;o2sensor no vacuum leaks vacuum at 2500 rpm is at 22 steady - Answered by a verified Toyota Mechanic ... 03 Toyota Camry 2.4L cold start stumble on acceleration once vehicle arms up still stumbles a little but when you shut vehicle off long crank time to start and intermittent no start ..., P0101 code in the Toyota Camry is crucial to maintaining your truck's performance and ensuring it runs efficiently. This code indicates that there is a problem with your car's Mass Air Flow (MAF) sensor, specifically, a Range/Performance issue. P0101 Code Definition MAF Sensor - Circuit (Range/Performance) The P0101 code indicates to …, P0171– Fuel Trim System Lean → Bank 1: P0171 indicates that the side of the engine with the first cylinder (Bank 1) is running lean. P0174- Fuel Trim System Lean → Bank 2: P0174 indicates that the side of the engine with the first cylinder (Bank 2) is running lean., P0171. System too lean. P0172. System too rich. P0174. System too lean (air/fuel lean malfunction, bank 2) P0175. System too lean (air/fuel rich malfunction, bank 2) P0300. ... Question: What is code C1300 on a Toyota Camry? Answer: A a non generic manufacturer's specific code for a particular model vehicle. Question: ..., P0171 Code '99 Camry V6. Jump to Latest Follow 664 views 2 replies 3 participants last post by CamryFL Jul 22, 2022. sayheyb Discussion starter ... ToyotaNation Forum is a community dedicated to all Toyota models. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more!, In Summary. The P0171 lean code is a common occurrence in Toyota vehicles, indicating bank 1 is running an excessively lean air/fuel mixture. Potential causes range from intake leaks to fuel system components to sensor issues. Proper diagnosis is crucial before replacing parts., 2010 Toyota Camry p0171 car intermittently stall at idle and crank but no start. Experimental parts thrown at vehicle: mass air flow, both vvt solenoids, intake cam sensor. Good Afternoon, my name is ***** ***** ill be helping you, so sorry to hear about to hear about the issues here on the Camry., I've been troubleshooting a 2002 Camry with this issue, is that the only code? first thing is to check and see if there are any broken or severely cracked hoses. two 10mm nuts will need to be removed to take off the top engine plastic cover, then just look for disconnected hoses or hoses with cracks, 08 toyota camry se p0171 code. Replaced MAF, intake, plugs, cleaned throttle body, need to asses fuel system and evap 20 Answers. It all began with having difficulty starting.. the car would turn over for awhile but not start i could pump on the gas a bit and try again after a few mins, and then it would fire up. Someone sugg..., Jul 12, 2016 · The code is set by what the ECU is reading. For example your P0171 = System too Lean (Bank 1). It does not mention any sensor, just that as the ECU "sees it" bank 1 is not getting enough fuel for the amount air the ECU thinks it is getting. Could be unmetered air getting in (vacuum leak), could be the A/F ratio sensor is getting lazy, or ... , A month ago, son's 2002 Echo started showing the CEL. Had a scan done at Autozone and the P0171 code came up. After doing some research, we bought a can of MAF cleaner and disconnected the battery cable, sprayed the sensor down, waited for it to fully dry and reinstalled it. My son started the Echo, backed out of the spot, shifted into Drive ..., But while driving it was threw a P0171 / P0174 after about 3 miles ... ToyotaNation Forum is a community dedicated to all Toyota models. Come discuss the Camry, Tacoma, Highlander, 4Runner, Rav4 and more! Show Less . Full Forum Listing. Explore Our Forums., P0171 (system too lean) Bank1 I replaced my MAF sensor to fix this problem. Symptoms: Knocks going up hills and accelerating. Premium gas used to make it better, but it got worse. Fix: After replacing my MAF sensor ($135, and a screwdriver and 5 minutes work!). IT RUNS GREAT!!! Toyota manual lists 5 different fixes for this problem..., Nov 22, 2015 · If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replaced the air filter and clean the air flow meter. If the problem persist the front oxygen (O2) sensor may need to be replaced. , 1 Answer. You need to try to find out where the leak is. Intake leaks can happen in many parts of the engine. Fixing intake leaks depend where the leaks is. Also, keep in mind that if no leaks are present, the the problem could be a fauly O2 sensor or Mass Air Flow (MAF) sensor. My engine light came on, diagnostic shows P0171 system leak on my ..., About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ..., The freeze frame showed that the long-term fuel trim was +24, whereas the short-term FT was +13. The steps I took were as follows: 1- Checked for vacuum leaks visually and (hesitantly) with carb cleaner; found none. 2- Replaced a couple of suspect vacuum-related hoses anyway. 3- Replaced the PCV valve., 442 posts · Joined 2011. #13 · Feb 17, 2021. Agreed, cj1. Some Corolla and Matrix models have an issue with the O2 sensor causing P0125 but then also triggering P0171. Even so, recommend looking at MAF, intake air temp, timing advance, fuel trims, ECT at a range of rpm to eliminate an air leak., Dec 23, 2017 · Kingdom934. 9114 posts · Joined 2006. #3 · Dec 23, 2017 (Edited) The P0171 should only come on if the fuel trims are getting in the err high zone, usually 25 ish. Those readings you are getting right now shouldn't trigger it unless something during the drive is causing a super high STFT/LTFT above -/+ 25...either too rich or too lean IIRC. , A few weeks ago, my CEL came on. The dealership pulled a P0171 code and told me that the MAF and charcoal canister needed to be replaced (said the latter had a spider's nest in it but there's no code). (Estimate says: MIL DTC P0171 system lean Mass Air Flow Sensor Open.) I looked around on this forum and found info on cleaning the MAF, which I did., 2003 Toyota Camry 2.4 has only one code P0171 I have a new Denso oxygen sensor The check engine light goes off/on even - Answered by a verified Toyota Mechanic. ... 2004 Toyota Camry, We have no codes, no check engine light and have not replaced the battery in the last year. We took the car for emissions and it failed., 2010 Toyota Camry p0171 car intermittently stall at idle and crank but no start. Experimental parts thrown at vehicle: mass air flow, both vvt solenoids, intake cam sensor. Good Afternoon, my name is ***** ***** ill be helping you, so sorry to hear about to hear about the issues here on the Camry., The average U.S. car weighs in at just 4,000 pounds, which is two tons. This is the average of all mass manufactured vehicles in the United States. Most gas-efficient, smaller seda..., Nov 4, 2020 ... Repair Manuals: https://shrsl.com/3zwnv https://sovrn.co/amfaf3n Fix it Angel EBAY STORE: https://ebay.us/OE6UsK repair smith ..., 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. The engine then makes adjustments to compensate and throws these codes, which trigger the service engine soon light. When these codes both appear at the same …, Labor: 1.0. To diagnose the P0171 2011 Toyota Camry code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and …, P0171 is triggered by the engine bank 1 “upstream” oxygen sensor and P0174 is triggered by the engine bank 2 “upstream” oxygen sensor. The oxygen sensor alerts your system when the condition is too lean meaning there’s too much oxygen in the exhaust. The symptoms and causes will help you determine the exact issue and how to fix it. , Diagnostic section, p.79, shows possible p0171 causes as: Gas leakage on exhaust system. u0001 Air intake (loose hoses) u0001 Fuel line pressure. u0001 Injector blockage. u0001 Manifold absolute pressure sensor. u0001 Engine coolant temp. sensor. u0001 A/F sensor., Welcome to all of you who have watched the video to share knowledge about car technology, it is easier and especially help than the car that is looking for a..., Monitor the fuel trims ( LT plus ST) at idle if both added together are 30+ then P0171 would probably set. Monitor the fuel trims as you increase RPM, if trims come down to ( around 10+) then suspect vacuum leak if not suspect MAF or fuel delivery problem. P0171 should have freeze frame engine data showing when it set.