I NTRODUCTION. Botulinum toxins are neurotoxic proteins produced by bacterium Clostridium botulinum and related species, and botulinum A toxin is one of the botulinum toxins arranged for medical use.[1,2] This toxin can effectively weaken muscle tone and is utilized for treatment of spastic hemiparesis in the upper and lower extremities caused by central nervous system disorders.[3,4,5,6] For ...23 juin 2013 ... Related P0171 Content. 1999 Chevy Silverado Code P0171. I Own A 1999 Silverado 1500 5.3l V8. All The Oxygen Sensors, Map, And Maf Sensors Have ...A Chevy Silverado with a P0171 Code is having an issue with the Air/Fuel ratio going into the engine. When troubleshooting a P0171 code, be sure to look for other codes that will help to troubleshoot the problem. For example, if you have a P0171 code along with a P1101 MAF air flow sensor, ...The 2015 Chevy Silverado 1500 Texas Edition package is available on all LT and LTZ models and adds 20-inch wheels, a locking rear differential, a trailering package and Texas Edition badges. The Texas Edition also includes mirror caps and d...When your Silverado P0171 trouble code is triggered, your Chevy Malfunction Indicator Lamp (MIL) will turn on. This error can cause driveability issues because the PCM sees the engine running without enough fuel, and cannot compensate correctly. There's a number of reasons that this can be happening in your Silverado.Feb 26, 2016 · The vehicle being worked on is a 2004 Chevy Suburban with a 5.3L engine. It had multiple trouble codes in memory P0171 and P0174 (fuel system too lean bank 1... However, some Chevrolet vehicles do use this code. ... I’m experiencing the exact same thing on my 2008 Silverado along with code P069E and P0191. The only difference is I just put in a new aftermarket fuel pump because the original rusted out and was leaking gas. We didn’t have these codes before installing the new fuel pump, only …Code P0171 stands for: P0171 Fuel Trim System Lean Bank 1. In this video we will explain the top reasons why most Chevrolet, Chevy, GMC, Buick, and Cadillac …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 ...P0101 code in the Chevy Silverado is crucial to maintaining your truck's performance and ensuring it runs efficiently. This code indicates that there is a problem with your truck's Mass Air Flow (MAF) sensor, specifically, a Range/Performance issue. The most common cause of P0101 is a bad MAF sensor.Ricky Peters. Chevrolet Master. 2,620 Answers. Sounds like it could be weak fuel pump.First check the fuel pressure it should be 60-66 psi with key on engine off.It takes at least 52 psi to open the poppet valve inside the injector to allow fuel thru,so if the valve is only opening partially then it could be running lean. Posted on Nov 16, 2011.• Fuel Trim DTC P0171 and/or P0174 may set. • Misfire DTC P0300 may set. • Heated oxygen sensor (HO2S) or oxygen sensor ... • 2014 Silverado, Sierra with 4.3L — RPO LV3 or 5.3L — RPO L83 GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform theseHow to Diagnose Code P0171-P0174 on a Chevy Silverado 2500 HD How to Automotive 195K subscribers Subscribe 595 65K views 3 years ago #HowtoAutomotive Brian Eslick from How to Automotive...Car Description: 2014 Chevy Cruze Approx 56,000 miles Symptoms: Check Engine PO171 code "Service Traction Control" will appear after the car has been on and running for a few minutes and stay on. "Service Stabilitrack System" will appear sporadically. Rough Idle - While stopped at red lights, the car will shake noticeably.2003 Chevy Silverado CK Engine Code P0171 and P0174 FUEL SYSTEM LEAN BANK 1 AND 2 WHAT IS THE FIX FOR THIS TROUBLE CODES - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website.A trouble code P0101: MAF Sensor System Performance Problem tells you that the fuel injection computer is seeing a problem with the MAF sensor signal. Easy Guide: Locating the Power Outlet Fuse in GMC Sierra (2003-2023) If this code is lighting up the check engine light on your V8 Chevrolet Silverado (GMC Sierra), then this article will help you.P0300 definition: Random, Multiple Misfire Detected. Code Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this trouble code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Diagnosis: A multiple cylinder misfire can be caused by anything from faulty spark ...16 déc. 2008 ... Chevy Avalanche Fan Club of North America · Home · Forums · New posts Search ... Lately the truck has been running VERY rough, throwing the P0171 ...When a vehicle has the fault code P0171, it means that computer can no longer automatically adjust the mixture between air and fuel. Code P0171 applies to 4-cylinder engines (Bank 1) as they generally have only one bank. If you have a V6 or V8 engine you can also get a P0174 code which refers to Bank 2. When the code says that the fuel …i have a 2008 chevy silverado 5.3. cant seem to get rid of p0171,p0174, p0300. things that have been done. good fuel pressure. afm manifold, lifters, and oil pump replaced. it will misfire at about 40 mph. check eng light flashes. under live data misfire is moving to different cyls. chk codes once itll be #6 #7, next time #5 #7 all plugs have been …I got in it, drove 30 miles or so, and the check engine light came on - P0171 and P0174. On Monday, I called the dealership (remember, 3 1/2 hours away) who informed me the problem was emissions related and NOT under warranty. I won't bore you with the details of arguing with "customer service" reps that one thing probably led to the other.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 ...If you’re looking into buying a dependable new or used truck, you’ve likely come across the 2020 Chevy Silverado in your search. The Silverado is consistently one of the most popular pickup trucks in the country, second only to Ford’s iconi...P0171 System too lean Bank 1 P0174 System too lean Bank 2 Now I did a little customizing to the air intake after the MAP sensor a few months agao, so I'll make that right. ... Enjoy banner ad-free browsing with Chevy Silverado and GMC Sierra Forum Plus. Learn more.What is the Cost to Diagnose the Code P0171 2017 Chevrolet Silverado? Labor: 1.0. To diagnose the P0171 2017 Chevrolet Silverado 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.16K views 8 months ago How to fixes a Chevy Silverado 5.3L engine with a P0171 Code System Too Lean (Bank 1) Read here for more information: https://www.backyardmechanic.org/fixe... ...more...There are a lot of causes for a P0171 Fuel Trim System Lean fault code. A cracked air intake tube is one that is often overlooked. Video breakdown: Video Bre...Feb 26, 2016 · The vehicle being worked on is a 2004 Chevy Suburban with a 5.3L engine. It had multiple trouble codes in memory P0171 and P0174 (fuel system too lean bank 1... Hablamos sobre el codigo dtc de falla p0171 causas, sintomas en el motor y solucion.Nov 19, 2021 · 2013 chevrolet silverado 6.0 2500 codigo de falla p0171 y p0174 con un servicio de boletin el problema la tapadera del motor hace contacto con el tubo de l... 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. 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 or a vacuum leak exists near this side of the engine. Vacuum leaks are one of the biggest causes of engine performance problems. This video is pretty straight forward in it's approach to finding a vacuum leak. ...The shorter-term for the system is too lean in bank 1 is code P0171. This code means that the system is running weakly on the first engine bank and is unable to properly deliver the correct amount of fuel to power the engine. This code can also mean that there is a vacuum leak in bank 1 of the engine, which can lead to a reduction of pressure ...Aug 24, 2018 · Te suministramos todo lo que necesitas saber sobre el código DTC P0171: ️ Descripción, ️ causas, ️ síntomas y ️ posibles soluciones.LEER SOLUCIÓN DEL CÓD... Bank 2: A P0174 DTC tells you that bank 2 is the one having the issue. Bank 2 is the engine bank that holds the spark plugs for cylinders 2, 4, and 6 (V6 4.3L). Cylinders 2, 4, 6 and 8 (V8 5.0L, 5.7L). This bank is the one on the passenger side of the engine. The main sensors responsible for telling the PCM that there's a problem with the air ...P0301 DTC means that there’s an engine misfire in cylinder 1. The Powertrain Control Module (PCM) detects that a misfiring is occurring in the 1st cylinder in the car motor, thereby alerting the engine to set this trouble code. It’s a generic code, applying to all OBD-II equipped models. While the P0301 trouble code might be …Sep 12, 2022 · Overview of the causes and fixes P0102 OBDII engine error code on a Chevy Silverado. Read more information here: https://www.backyardmechanic.org/cause-and-f... 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, it is 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.Pull the old MAF sensor out of the air filter housing pipe 4, then unclip the connector with the help of a flat-tip screwdriver 5.Be careful not to damage the wiring connector or the wires ... Aug 21, 2022 · Code P0174 Chevrolet Tech Notes. The P0174 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0174 is set in along with the P0171 code, it is 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 ... I keep getting p0300 and sometimes 0171 & 0174. I drive around with the scan tool connected. On cold mornings engine usually revs up then drops, then once I start driving I get the 0300. If the weather warms up the code usually clears itself. My truck has 155k miles, the guy I bought it from...Nov 19, 2021 · 2013 chevrolet silverado 6.0 2500 codigo de falla p0171 y p0174 con un servicio de boletin el problema la tapadera del motor hace contacto con el tubo de l... Overview of the causes and fixes P0102 OBDII engine error code on a Chevy Silverado. Read more information here: https://www.backyardmechanic.org/cause-and-f...The shorter-term for the system is too lean in bank 1 is code P0171. This code means that the system is running weakly on the first engine bank and is unable to properly deliver the correct amount of fuel to power the engine. This code can also mean that there is a vacuum leak in bank 1 of the engine, which can lead to a reduction of pressure ...The P0172 DTC means that the car’s computer has determined that the fuel system is running too rich. The alert was set off on Bank 1. A rich-running system means that there’s either too much fuel or a lack of oxygen in the air-fuel mixture. Bank 1 indicates it’s located on the side that contains the #1 cylinder.In this video we discuss common causes and repair for code P0171. the subject vehicle is a 2006 Chevy Equinox equipped with the 3.4L engine. Also shown, a 20...1999 CHEVROLET SILVERADO. V8. 2WD. AUTOMATIC. 371,000 MILES. I own a 1999 Silverado 1500 5.3L V8. All the oxygen sensors, MAP, and MAF sensors have been replaced in the past 5-6 months. Every few days I get the code P0171 lean on bank 1.What is the Cost to Diagnose the Code P0171 2018 Chevrolet Silverado? Labor: 1.0. To diagnose the P0171 2018 Chevrolet Silverado 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.Feb 26, 2022 · P0171 definition: Bank 1 has too much air or not enough fuel – This will typically trigger your Check Engine Light Issue Severity: MODERATE– Extended driving with this problem code can cause internal engine damage. Repair Urgency: Get this trouble code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Feb 26, 2022 · P0171 definition: Bank 1 has too much air or not enough fuel – This will typically trigger your Check Engine Light Issue Severity: MODERATE– Extended driving with this problem code can cause internal engine damage. Repair Urgency: Get this trouble code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. These are estimated costs to Fix p0175 Chevy Silverado: Vacuum leak- $100-$200. Air-fuel sensor/ Oxygen sensor- $200-$300. Repairing the exhaust- $100-$200. Fuel pressure regulator- $200-$400. Fuel pump- $1300-$1700. Cleaning the mass air flow sensor- $100. Replacing the mass air flow sensor- $300.Jul 10, 2018 · One of the most common trouble codes with the Chevy Silverado is P0174. It indicates that your Chevy Silverado is running lean on the bank two side of the engine. P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list of Jun 19, 2011 · Bank 2: A P0174 DTC tells you that bank 2 is the one having the issue. Bank 2 is the engine bank that holds the spark plugs for cylinders 2, 4, and 6 (V6 4.3L). Cylinders 2, 4, 6 and 8 (V8 5.0L, 5.7L). This bank is the one on the passenger side of the engine. The main sensors responsible for telling the PCM that there's a problem with the air ... What Does Chevrolet Silverado 1500 Code P0301 Mean? Chevrolet Silverado 1500 P0301 definition: Cylinder 1 misfire detected. Issue Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Diagnosis: A cylinder 1 misfire can be caused by anything from faulty […]In this video we discuss common causes and repair for code P0171. the subject vehicle is a 2006 Chevy Equinox equipped with the 3.4L engine. Also shown, a 20...May 2, 2018 · Scanned it and got P0171 and P0174, bank 1 and bank 2 Lean Codes. I'm not sure exactly what some of the 'normal' readings are so I will list a few of the Freeze Frame numbers and see what you all might suggest. Both Long Term Fuel Trims are way off and Short terms are normal. Fuel Press seems a bit low possibly and not sure of 'normal' MAF or ... =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈== How to Fix CHEVROLET P0420 ==Engine Code CHEVROLET P0420 Savin...Chevrolet Silverado 2017 2018 Silverado 2500HD/ L5P 3500HD 2019 2020 Silverado 4500HD, 5500HD and 6500HD 2019 2020 L5D GMC Sierra 2017 2018 Sierra 2500HD/ L5P 3500HD 2019 2020 Involved Region or Country North America, Middle East, Israel, Palestine Condition Some customers may comment that the MIL is illuminated.Aug 24, 2018 · Te suministramos todo lo que necesitas saber sobre el código DTC P0171: ️ Descripción, ️ causas, ️ síntomas y ️ posibles soluciones.LEER SOLUCIÓN DEL CÓD... =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈==== How to Fix P0174 =====Engine Code P0174 Saving Repair ...So this engine code article applies to Toyota, Chevrolet, Ford, Nissan, Honda, GMC, Dodge, etc. Basically this means that an oxygen sensor in bank 1 has detected a lean condition (too much oxygen in the exhaust). 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. Nov 21, 2018 · Fuel System Too Rich. P0172 is thrown when the oxygen sensors detect that the air-fuel mixture is too rich. A rich fuel mixture contains too much fuel in relation to air. The A/F ratio for ideal combustion is 14.7 parts air to 1 part fuel (14.7:1). With that in mind, either too much fuel or not enough air can cause a vehicle to run rich. P0171 is a common trouble code for a Chevy Silverado with an engine that is running lean. This can be caused by a number of different things, but the most common cause is a vacuum leak. Other causes can include dirty fuel injectors, a faulty mass air flow sensor, or a leaking intake manifold gasket.Code P0171 stands for: P0171 Fuel Trim System Lean Bank 1. In this video we will explain the top reasons why most Chevrolet, Chevy, GMC, Buick, and Cadillac …Additional codes can offer critical info about your Silverado’s condition. Rarely does P0175 Chevy show up alone (if it does look for a vacuum leak, bad O2 sensor, or dirty MAF). 2. Spot The Weird Odor. While the engine operates, a strong gas smell could be coming from a leaky injector or a fault with fuel regulation. 3.What is the Cost to Diagnose the Code P0171 2017 Chevrolet Silverado? Labor: 1.0. To diagnose the P0171 2017 Chevrolet Silverado 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.Code p0171 Chevy 1500 5.3 L rough start and dying while idling or taking off. Check engine light on. Did complete fuel - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... Chevrolet Silverado 1500 Classic LT: Code p0171 Chevy 1500 ...A trouble code P0101: MAF Sensor System Performance Problem tells you that the fuel injection computer is seeing a problem with the MAF sensor signal. Easy Guide: Locating the Power Outlet Fuse in GMC Sierra (2003-2023) If this code is lighting up the check engine light on your V8 Chevrolet Silverado (GMC Sierra), then this article will …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. This is a ‘lean’ condition or a ‘low fuel trim’ code. The P0171 OBD-II code indicates that the fuel system on the first bank of the engine is weak or that a vacuum leak exists near this side of the engine. A lean state happens …Tools needed for diagnosing advanced P0171 code causes: OBD II scanner or code reader. Carburetor or throttle body cleaner. 1. Disconnected or Leaking Hoses. Air Intake Hose: Find the air intake hose that connects to the engine. Grab and shake it so you can feel if anything is loose.If there is too much air, the ECM or PCM overcompensates with larger fuel injections, which triggers the P0171 code. How Serious Is a P0171 Code? Is It Okay to Drive with? A lean fuel trim code like P0171 …=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P2270 Saving Repair Parts...Jul 23, 2023 · What is the Cost to Diagnose the Code P0171 2014 Chevrolet Silverado? Labor: 1.0. To diagnose the P0171 2014 Chevrolet Silverado 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. The cost of P11011 issues on a Chevy Cruse depends on the cause. OEM air filters cost less than $30 for all engine types, so this is a budget-friendly place to start diagnosing the problem. An OEM ...Feb 16, 2020 · CODE P0171 EXPLAINED ON CHEVY, CHEVROLET, GMC, BUICK, CADILLAC ENGINE LIGHT ON Great Car Scanner: https://amzn.to/2QmNBri Check out our Amazon Store for t... 23 juin 2013 ... Related P0171 Content. 1999 Chevy Silverado Code P0171. I Own A 1999 Silverado 1500 5.3l V8. All The Oxygen Sensors, Map, And Maf Sensors Have ...The code P0171 is a lean trouble code kept in the PCM for your car based on the readings from the oxygen sensor (O2). If your car activates this code, it implies that there is the presence of excess air in the exhaust. Can a bad fuel filter cause P0174? Yes. The code activates if your car has a clogged fuel filter or damaged fuel pump.P2270 is a generic OBD-II code that appears with many manufacturers. It shows that the O2 sensor signal is stuck in a lean condition. The faulty reading is coming from the second O2 sensor on bank 1. This is known as the downstream oxygen sensor. This sensor is reading too much oxygen in the exhaust.Nov 12, 2012 · Failed or Faulty Oxygen Sensor (bank 1, sensor 1) Sticking/Plugged or Failed Fuel Injector. Low Fuel Pressure (possible plugged/dirty fuel filter!) Exhaust Leak between Engine and first Oxygen Sensor. Possible Solutions: A lot of Times, Cleaning the MAF Sensor and Finding/Fixing Vacuum Leaks fixes the Problem. CODE P0171 EXPLAINED ON CHEVY, CHEVROLET, GMC, BUICK, CADILLAC ENGINE LIGHT ON Great Car Scanner: https://amzn.to/2QmNBri Check out our Amazon Store for t...Brian Eslick from How to Automotive http://www.howtoautomotive.com takes you step-by-step through the process of diagnosing code P0171-P0174 lean bank 1 and ...O2 sensor 1/1 is the upstream sensor on Bank 1 (different for a Ford than for a Chevy or a Dodge), and O2 sensor 1/2 is the downstream sensor on Bank 1. O2 2/1 is upstream on Bank 2 and O2 2/2 is downstream on Bank 2. See also P0137 Code: Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 2) Since the code is for sensor 2, we know …P0300 is a diagnostic trouble code (DTC) for "Random/Multiple Cylinder Misfire Detected". 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 $154.99 .Additional codes can offer critical info about your Silverado’s condition. Rarely does P0175 Chevy show up alone (if it does look for a vacuum leak, bad O2 sensor, or dirty MAF). 2. Spot The Weird Odor. While the engine operates, a strong gas smell could be coming from a leaky injector or a fault with fuel regulation. 3.Jan 19, 2021 · I have a 2004 Silverado Z71, 5.3 with 154K miles. Other than this problem the ruck runs great. I had the fuel lines and fuel pump replaced two months ago and after that, I started to get the P0171 and P0174 (bank 1 and 2 lean) and the long term fuel trims "LTFT" are 18-25% (both) There were no... As of 2015, the towing capacity of a Chevrolet Silverado 1500 is rated up to 12,000 pounds, depending on the model and configuration of the truck. The average Chevy Silverado 1500 is designed to have a towing capacity of at least 7,600 poun...Tools needed for diagnosing advanced P0171 code causes: OBD II scanner or code reader. Carburetor or throttle body cleaner. 1. Disconnected or Leaking Hoses. Air Intake Hose: Find the air intake hose that connects to the engine. Grab and shake it so you can feel if anything is loose.23 juin 2013 ... Related P0171 Content. 1999 Chevy Silverado Code P0171. I Own A 1999 Silverado 1500 5.3l V8. All The Oxygen Sensors, Map, And Maf Sensors Have ...While some trouble codes leave vehicle owners with a plethora of possible causes, the P0449 code likely only has one of three possible causes. First, the vent valve in the evaporative emissions system might be faulty. Second, the connection, wires, or circuits in the system might be having a connectivity issue that is causing a false reading.Tools needed for diagnosing advanced P0171 code causes: OBD II scanner or code reader. Carburetor or throttle body cleaner. 1. Disconnected or Leaking Hoses. Air Intake Hose: Find the air intake hose that connects to the engine. Grab and shake it so you can feel if anything is loose.However, some Chevrolet vehicles do use this code. ... I’m experiencing the exact same thing on my 2008 Silverado along with code P069E and P0191. The only difference is I just put in a new aftermarket fuel pump because the original rusted out and was leaking gas. We didn’t have these codes before installing the new fuel pump, only …P0300 definition: Random, Multiple Misfire Detected. Code Severity: SEVERE – Stop drivi, Feb 14, 2012 · I keep getting p0300 and sometimes 01, I keep getting p0300 and sometimes 0171 & 0174. I drive around with the scan tool con, Faulty fuel injector. Vacuum leak. Low fuel pressure. Camshaft and/or crankshaft sensor defective. Engine timing off., nmartin4149 Discussion starter · Feb 3, 2013. Hey everybody, I have a 2000 S, Chevrolet Silverado 2017 2018 Silverado 2500HD/ L5P 3500HD 2019 2020 Silverado 4500H, Aug 3, 2023 · Short fuel trim is the immediate response of the ECM/PCM to rich and , A quick overview of the common causes and fixes of a 2014-, Nov 1, 2018 · P0101 code in the Chevy Silverado is crucial to, P0171 and P0174 both indicate that there is a lean condition pr, For More Codes Visit Our Site :https://carsfault.comThe Engine Contr, What is the Cost to Diagnose the Code P0171 2015 Chevro, PCM logged a lean fuel trim code (P0171 Code: Fuel , P0153 Code: O2 Sensor Circuit Slow Response (Bank 2, Sensor 1) - In T, However, some Chevrolet vehicles do use this code. ... I’m, Here are the step-by-step instructions: 1. With your scan tool, What repairs can fix the P0171 code? Replacing the fuel pum, CODE P0171 EXPLAINED ON CHEVY, CHEVROLET, GMC, BUICK,.