Po 171 toyota - The PO 171 and PO 174 codes are specific trouble codes that indicate a problem with the fuel system, specifically related to lean conditions. These codes are commonly found in Ford vehicles and can lead to a variety of symptoms such as rough idle, poor acceleration, and increased fuel consumption. Possible causes of PO 171 and PO …

 
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 replace the air filter and clean the airflow meter. If the problem persists the front oxygen (O2) sensor may need to be replaced. 2005-2006 Toyota Corolla.. A gram of coke is how much

2003 toyota corolla ce....PO 171 PO 301.....I have changed. 2003 toyota corolla ce....PO 171 PO 301.....I have changed plugs and switched the #1 coil with the #2 coil. I have also serviced the MAF and new air filter changed the fuel filter but I …So I have a 2019 Toyota Corolla Le and originally the temp dropped 12/23/22 and I had p0171 come up and I had both oxygen sensors replaced then same code plus all 4 cylinder misfire so I changed all spark plugs coil packs and air filter. Then p0171 came back checked maf it was good. Now p0171 plus p0441&p0455 just came up as well.Mar 19, 2024 ... 2005 Toyota Corolla is the car being worked on this video. The part number for the 02 Sensor: 234-4233.In today’s fast-paced business environment, efficiency is the key to success. One area where businesses can significantly improve their efficiency is through the use of top-rated P...In the fast-paced world of restaurants, efficiency and profitability are key to success. One way to achieve these goals is by investing in a reliable and advanced restaurant point-...A P0171 or P0174 trouble code tells you the fuel mixture is running lean (not enough fuel and/or too much air). This type of problem can be confirmed by looking at the Short Term Fuel Trim (STFT) and Long Term Fuel Trim (LTFT) values with a scan tool. Normally, STFT and LTFT should be plus or minus 5 to 10 from zero.Po 171, car too lean, oxygen sensor in bank 1. 2003 Dodge Neon. Asked by Dorjan in Lombard, IL on . October 02, 2009. i have done about 4 scans and they all said car too lean, PO171. OBD2 said oxygen sensor detected in bank 1 detected a lean condition (2 much oxygen in the exhaust). What do u recommend change the oxygen sensor.2003 toyota corolla ce....PO 171 PO 301.....I have changed plugs and switched the #1 coil with the #2 coil. I have also serviced the MAF and new air filter changed the fuel filter but I am still getting these codes. Could it be the #1 Injector?Most common cause of this code is vacuum leak in your intake system....sure there are other possible problems too....P0171 and P0174 Error Code Fix On A Lexus ES300: There are a few different things that can cause a P0171 or P0174 code. But if there is no symptoms in the ...The most common repairs needed to fix the P0171 engine code are as follows: Replacing the fuel pump. Replacing the fuel filter. Replacing the fuel pressure regulator. Replacing the powertrain control module. Replacing one or more injectors. Replacing one or more oxygen sensors. Replacing the mass air flow sensor. Repairing a vacuum leak.Apr 9, 2020 · John Anthony. If you mean oil was on the ceramic part of the plugs in the spark plug tubes, then that problem can be resolved by changing the valve cover gasket. P0171 is very often a faulty, poorly designed original intake manifold gasket. If your IM gasket has never been replaced, then replace it with this updated/improved gasket: Toyota Mechanic: Victor. Most of the time when a code P0171 is set, the problem is a faulty Mass Airflow sensor. Try doing this for me: Let the engine idle in Park until it warms up. While still in Park, give the accelerator pedal a quick snap of the throttle.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 ...Toyota’s Port of Long Beach Facility to Proceed; California Public Utilities Commission Rearms that the Use of Directed Biogas under the Bioenergy Market Adjusting Tari …=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code TOYOTA P0174 Saving Repa...A P0171 or P0174 trouble code tells you the fuel mixture is running lean (not enough fuel and/or too much air). This type of problem can be confirmed by looking at the Short Term Fuel Trim (STFT) and Long Term Fuel Trim (LTFT) values with a scan tool. Normally, STFT and LTFT should be plus or minus 5 to 10 from zero.1. 2. 3. 4. Great Deal. Used 2023 Toyota Prius Prime. $38,989. Exterior: Cutting Edge. Interior: Black/Red. Engine: Gas/Electric I-4 2.0 L/121. Transmission: CVT. Body Type: …toyota yaris po171 ,poor idle,lack of power, check for vacum leaks, sticking IAC valve,faulty MAF sensor, how to repair, toyota yaris 1000cc, poor idle, miss...668 posts · Joined 2007. #12 · Nov 21, 2008. p0171 is lean code and usually clean the maf with electric parts cleaner. reset codes usually fix both. the p0420 is a o2 after the cat hopefully the first step fixes this code too. THE BLACK PEARL. recent mods: one eyed jack-in-the-box ball. :burnout: B.Toyota Passenger and Sports Car Forums. Corolla and Matrix Forum. Corolla 8th Generation (1998-2002) Po 171. 752 Views 1 Reply 2 Participants Last post by funman1, Mar 4, 2014. J. Javed13 Discussion Starter · Mar 4, 2014. Add to quote; Share Only show this user. Hi, i have a 2000 corolla and have been having the check engine …1 post · Joined 2016. #3 · Jan 15, 2016. I have a 2011 Rav4 and the same two codes (P0101 and P0171) popped up after replacing the air filter. I wanted to post here in case someone else comes across this thread like I did. There's a rubber hose about 1" in diameter that plugs into the air intake housing right beyond the mass air flow sensor.Here is a couple of EASY things that we did to correct the Air Fuel ratio & get the MiL Light to go off while Driving our 2007 1zz-fe 1.8L Corollahttps://amz...4. Gender: Male. 2003 Prerunner V6 Limited. Took truck back to get p0171 code cleared, now along with p0171, the computer also got p0113 and p0102 codes. Truck still running smooth. I did try to unplug MAF sensor while truck was running and it killed. So I would think that it is getting correct voltage to it.code po401 and po 171 check engine light. 4438 Views 3 Replies 3 Participants Last post by kikemt, Mar 17, 2010. kikemt Discussion starter ...P0174 is a diagnostic trouble code (DTC) for "Trouble Code Help Diagnostic & Repair". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $169.99 .Nov 1, 2017 · Most common cause of this code is vacuum leak in your intake system....sure there are other possible problems too.... Aug 14, 2017 · 12K views 9 replies 2 participants last post by l33ch Sep 3, 2017. F. flyboyy Discussion starter. 70 posts · Joined 2012. #1 · Aug 14, 2017 (Edited) I have the codes 441 and 455 showing up on an ODB reader. I cancelled the codes, turned on the engine and they haven't returned. The gas tank is slightly under 1/2. The P0171 is a diagnostic trouble code (DTC) that means, on the first bank of the engine, the fuel system is running weak or a vacuum leak exists near this side of the engine. A …Hello, I just bought a used 2000 Chevy Prizm, which I am told is the same as the Corolla. About a month after I bought the car, the CEL came on. The scope I rented from the auto parts store read the code as PO171 (Bank 1) System Too Lean. I was advised that there was a tiny chance it was the...If approved, Shell will build, own and operate a hydrogen station at the Toyota Logistics Services location at the Port of Long Beach, fueling Toyota's Project …El código P0171 Toyota significa que el sistema de combustible está fallando y que la gasolina no está llegando al motor. Esto puede deberse a una variedad de factores, incluido un sensor de oxígeno defectuoso, un filtro de combustible obstruido o una fuga de vacío. Cuando el motor funciona pobremente, puede causar daños al convertidor ...Fuel Injectors. P0171 indicates that your Toyota Corolla is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171.Fuel Injectors. P0171 indicates that your Toyota Corolla is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171.Trying to find the issue with 2006 1.3L Yaris hatch: Check engine light comes on after driving for a while, usually after highway use. Other than the check engine light coming on the car is running very well, good fuel consumption, smooth idle and acceleration. Get a PO420 but if I do not clear i...Jul 7, 2018 · 2002 Toyota Corolla P0171 code diagnostics and solved after dealer failed. Here is a couple of EASY things that we did to correct the Air Fuel ratio & get the MiL Light to go off while Driving our 2007 1zz-fe 1.8L Corollahttps://amz...It is also one of the most common codes. The most common causes of P0171 are a bad Oxygen sensor, a vacuum leak, or a dirty MAF sensor. P0171: Fuel Trim System Lean (Bank 1). Check engine light, decreased fuel economy, misfire, hard to find idle. Dirty MAF sensor, vacuum leak, O2 sensor.The Engine Control Module measures the amount of oxygen in the exhaust system via the oxygen sensors and makes adjustments by adding more or less fuel to the mixture. When the adjustments become …There are several disadvantages to the POS system, including the increased difficulty teaching the system and cost. POS systems are generally more popular today than before, but ma...98 toyota tacoma: cyl..scan tool, trouble code po 171..o2 sensor 98 toyota tacoma, 4 cyl. check eng lite came on, on diagnosis with a scan tool, trouble code po 171, system too lean bank 1 was indicated.Hi all, i been trying to problem solve some codes. They are PO171 AND PO133. Decided to check my fuel trim and WOW, look at my numbers. I have replaced both O2 sensors and MAF Sensor as well as Intake and exhaust Gasket. Checked for leaks with a smoke test and had not come across a leak. By looking at the screen shots.Without testing your 2006 Toyota Corolla, it's impossible to answer! These are 'some' of the possibilities for code PO171: - Intake air leaks - Faulty front heated oxygen sensorOct 12, 2018 · Fuel Injectors. P0171 indicates that your Toyota Highlander is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171. A P0171 or P0174 trouble code tells you the fuel mixture is running lean (not enough fuel and/or too much air). This type of problem can be confirmed by looking at the Short Term Fuel Trim (STFT) and Long Term Fuel Trim (LTFT) values with a scan tool. Normally, STFT and LTFT should be plus or minus 5 to 10 from zero.In today’s fast-paced restaurant industry, efficiency and accuracy are key to success. One of the most effective ways to streamline your restaurant operations is by investing in a ...Dec 28, 2017 ... 2005 Toyota Corolla emissions code P0171, System too lean bank1,. run the gas tank to 1/4 tank, put a container of Techron in, ... 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. 2003 toyota corolla ce....PO 171 PO 301.....I have changed plugs and switched the #1 coil with the #2 coil. I have also serviced the MAF and new air filter changed the fuel filter but I am still getting these codes. Could it be the #1 Injector?It is also one of the most common codes. The most common causes of P0171 are a bad Oxygen sensor, a vacuum leak, or a dirty MAF sensor. P0171: Fuel Trim System Lean (Bank 1). Check engine light, decreased fuel economy, misfire, hard to find idle. Dirty MAF sensor, vacuum leak, O2 sensor.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 …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. A lean code or codes …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 time, it ...Checker and Oreilly auto parts let you use a computer for free. I bought this 2000 3.4L truck with 112k miles. The guy before me bought it with 40k miles and did absolutely nothing except oil changes.Intake air leaks. Fuel injector blockage. Faulty Mass Air Flow (MAF) sensor. Faulty Engine Coolant Temperature Sensor. Faulty Air Fuel Ratio (A/F) Sensor (Front … On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. The P0171 is one of the more common trouble codes. This code is triggered by the first downstream (front) O2 sensor. The sensor provides a reading of the air:fuel ratio leaving the engine's cylinders, and the vehicles powertrain/engine control module (PCM/ECM) uses ... Jul 1, 2017 · 2000 Toyota Corolla with p0171 lean code. See how I diagnose the problem quickly and get the car fixed. Subscribe for more automotive diagnostic videos.On... To diagnose the P0174 Toyota 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.98 toyota tacoma: cyl..scan tool, trouble code po 171..o2 sensor 98 toyota tacoma, 4 cyl. check eng lite came on, on diagnosis with a scan tool, trouble code po 171, system too lean bank 1 was indicated.It is also one of the most common codes. The most common causes of P0171 are a bad Oxygen sensor, a vacuum leak, or a dirty MAF sensor. P0171: Fuel Trim System Lean (Bank 1). Check engine light, decreased fuel economy, misfire, hard to find idle. Dirty MAF sensor, vacuum leak, O2 sensor.Fuel Injectors. P0171 indicates that your Toyota Rav4 is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171.Dec 28, 2020 ... 2013 Toyota Highlander LTD with check engine light on, TRAC OFF light on, codes P0171, P0174 engine 2GR-FE V6.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. 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 ...From popular U.S. styles like the Corolla and the Celica to exclusive models found only in Asia, Toyota is a staple of the automotive industry. Check out 15 of the best Toyota mode...The Toyota RAV4 is one of the most popular SUVs on the market, and for good reason. It offers a great combination of style, performance, and reliability. If you’re in the market fo...Jun 5, 2012 · Correct. The P0174/P0171 codes (Fuel system too lean, banks 1 and 2) usually means a vacuum leak from the intake manifold gasket, a vacuum hose, PCV hose, etc, or the MAF is dirty, or there's a fuel delivery problem (clogged injectors, fuel pump going out, etc). Only after all those can be eliminated do you look at the fuel-air sensor (s). Checker and Oreilly auto parts let you use a computer for free. I bought this 2000 3.4L truck with 112k miles. The guy before me bought it with 40k miles and did absolutely nothing except oil changes.Fuel Injectors. P0171 indicates that your Toyota Corolla is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171.Hi Viewers, If you happen to get a P0171 code, please view this video. Easy Fix. Thanks for watching.*****Update June 24,2018 ***** It has been over 6 ...2003 camry 2.4L check engine code P0171. the air fuel ratio sensor has been replaced 3 or 4 year ago (denso) due to rodent chewed the wire, but oxygen sensor is still original. AFR and oxygen sensor reading very responsive, react immediate to change of engine speed.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 …2003 camry 2.4L check engine code P0171. the air fuel ratio sensor has been replaced 3 or 4 year ago (denso) due to rodent chewed the wire, but oxygen sensor is still original. AFR and oxygen sensor reading very responsive, react immediate to change of engine speed.The United States is home to more than 1 million brick-and-mortar retail establishments, and most of them have one critical thing in common: a POS system. Without a POS system, acc...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 …PO 171 code on a 2000 toyota tundra Sr5 5.7 V8 engine 164 thousand miles ? What are the common problems for the Po 171 on 200 Sr5 V8 Toyota tundra? Having issues diagnosing changed Maf sensor lean condition code cant …Trying to find the issue with 2006 1.3L Yaris hatch: Check engine light comes on after driving for a while, usually after highway use. Other than the check engine light coming on the car is running very well, good fuel consumption, smooth idle and acceleration. Get a PO420 but if I do not clear i...I guess the HEAD GASKET you referred to is valve cover gasket. Based on my experience. The most possible reason for the code is leaking vacuum. I replaced my spark plugs last year. After that the car throw p0171 and p0174 as well. I checked all the vacuum hose and found no leak. But I knew that I only replaced one gasket (intake planum gasket ...If approved, Shell will build, own and operate a hydrogen station at the Toyota Logistics Services location at the Port of Long Beach, fueling Toyota's Project …Sep 19, 2015 ... This Toyota 4-Runner is getting terrible fuel economy and blowing black smoke out of the tailpipe. However, the trouble code is P0171-System ...Sep 16, 2019 · 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. A lean code or codes suggest that there surely is too-much air in the exhaust. Bear in mind parts shops have staff members having good motives nonetheless they may not have the experience necessary to ... Jan 20, 2024 · The P0171 code could either mean that the oxygen sensor detects too much oxygen or too little fuel in the air-to-fuel ratio. Some possible causes for the imbalance include vacuum leaks, malfunctioning mass air flow sensors, and a clogged fuel filter. Symptoms of the P0171 code include power loss, misfires, and rough idling. 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 time, it ...The P0171 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0171 is set in along with the P0174 code, …Nov 1, 2017 · Most common cause of this code is vacuum leak in your intake system....sure there are other possible problems too.... Correct. The P0174/P0171 codes (Fuel system too lean, banks 1 and 2) usually means a vacuum leak from the intake manifold gasket, a vacuum hose, PCV hose, etc, or the MAF is dirty, or there's a fuel delivery problem (clogged injectors, fuel pump going out, etc). Only after all those can be eliminated do you look at the fuel-air sensor (s).Fuel Injectors. P0171 indicates that your Toyota Corolla is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171.Reason 1: Gas Blend, Outside Temperature, or “Bad Gas”. One reason for the P0420 code can be when the gas stations switch over to winter blend gas. As you may know, gas formulations change between winter and summer in many regions, and this can cause the vehicle emissions to change.P0171 Causes. Faulty or dirty mass airflow sensor. Vacuum leaks – PCV hoses, vacuum hoses, intake manifold gasket. Weak fuel pump. Clogged or dirty fuel …1.8K. 648K views 9 years ago. How to repair and fix fault or error code P0171 and reset warning light Toyota Corolla VVT-i engine. Years 2000 to 2019. Air flow …To diagnose the P0174 Toyota 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.

Common problem on echo's. Cleaning(works sometimes) or replacing the MAF sensor is the common solution. Toyota even has an updated part # for it. part#22204-0D030. But be sure to check for vac. leaks. Normal intake manifold vac should be 17-23"hg.. Costco waipio gas price

po 171 toyota

My Toyota Corolla 2000, 123,000 miles, Mass license plate, still getting 34 miles per gallon, has had check engine light on and off for a year. Failed inspection this June. ... First thing they did when Lean PO 171 came on was “smoke engine to locate leak, clean mass air flow sensor. purge and flush fuel injectors. clear codes and reset ...OBD-II DTC: P0171 System Too Lean (Bank 1) P0130 is O2 Sensor Circuit Malfunction (Bank 1, Sensor 1). It's the first O2 sensor in the exhaust system. Again, an OBDII scanner should be able to show you how well the O2 sensor is responding. If it reports that the O2 sensor isn't responding, replacement of the O2 sensor should fix the …=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈===== How to Fix P0171 =====Engine Code P0171 Saving Repair...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code TOYOTA P0174 Saving Repa...When it comes to purchasing parts for your Toyota vehicle, it’s important to ensure that you’re getting genuine, high-quality parts. With the rise of online shopping, counterfeit p...“Code P0171 – system too lean bank 1” means there is too much oxygen or too little fuel in the exhaust, which is referred to as a “lean” condition, or a lean or “low fuel trim” code. This can be caused by …Toyota’s Port of Long Beach Facility to Proceed; California Public Utilities Commission Rearms that the Use of Directed Biogas under the Bioenergy Market Adjusting Tari …We explain the Toyota Financial repossession policy in plain language. Find out what happens if you're unable to make payments on your Toyota loan. Toyota Financial Services’ repos...The number 1 cause of the p0171 on the Tacoma is a dirty mass air flow sensor. If you remove the MAF and clean it with electrical contact cleaner--any other cleaner could damage it. Clean the inside and outside of the sensor. If you have a K&N filter (or any filter with a oil on it) get rid of it! Was this. answer.Te suministramos todo lo que necesitas saber sobre el código DTC P0171: ️ Descripción, ️ causas, ️ síntomas y ️ posibles soluciones.LEER SOLUCIÓN DEL CÓD...2003 toyota corolla ce....PO 171 PO 301.....I have changed plugs and switched the #1 coil with the #2 coil. I have also serviced the MAF and new air filter changed the fuel filter but I am still gett … read moreSep 13, 2010 · Model: I. Hello all, My CEL went on two weeks ago. Diagnostic code P0171 "lean condition". The mechanic did a smoke test as he originally suspected a vacuum leak. No vacuum leak but he did find a leaky airbox. He suspected this wasn't the cause of the CEL going on but reset the diagnostic system to make certain. 2013 Toyota Highlander LTD with check engine light on, TRAC OFF light on, codes P0171, P0174 engine 2GR-FE V6One of the most common causes of the P0171 engine code is a fuel system leak. When your fuel system leaks, more air and less fuel will enter the engine's cylinders. This results in your engine running lean because it can't get the necessary amount of fuel. Another problem with the fuel system is clogged fuel injectors.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 …Fuel Injectors. P0171 indicates that your Toyota Corolla is either getting too much air or not enough fuel. A clogged or damaged fuel injector will cause the air-fuel mixture to lean out in one specific cylinder. You may see a cylinder misfire code or fuel injector-specific code with P0171.OBD-II DTC: P0171 System Too Lean (Bank 1) P0130 is O2 Sensor Circuit Malfunction (Bank 1, Sensor 1). It's the first O2 sensor in the exhaust system. Again, an OBDII scanner should be able to show you how well the O2 sensor is responding. If it reports that the O2 sensor isn't responding, replacement of the O2 sensor should fix the issue but ...Do you have a Toyota Tundra and have a check engine light illuminated and stored codes P0171 and P0173 along with a loss of power under load? You may have a ....

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