Illuminated - DTC P026D, P2A00, P0171, P0172, and/or P0300 Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Chevrolet Cruze 2014 2015 - - LUZ-Cruze 2018 2019 LH7 Equinox 2018 2019 LH7 Silverado 2017 2018 L5P Silverado 1500 2020 2020 LM2 Silverado 2500/3500 2019 2020 L5P Silverado 4500HD, 5500HD and 6500HD …What is the Cost to Diagnose the Code P0171 Chevrolet? Labor: 1.0. The cost to diagnose the P0171 Chevrolet 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. Jul 10, 2021 · 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. 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 …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.OBD code P0171 indicates a serious issue with the fuel/air ratio entering the first cylinder bank on your Chevrolet Silverado - i.e. the side with the #1 cylinder. This generally means that you've got a leak somewhere that's keeping the engine from getting enough fuel.With the P0133 code, you know you are dealing with a fault related to the oxygen sensor on bank 1. It’s related to sensor 1. However, this same fault can occur with the other oxygen sensors. The only way to know the difference is because the code won’t be the same. Here are the two other codes that would occur on Bank 1.Jan 6, 2023 · The P0700 and P0420 codes are both diagnostic trouble codes (DTCs) for a Chevy Silverado. The P0700 code is a general code that indicates a malfunction in the vehicle’s transmission system. It is usually accompanied by other codes that can help pinpoint the cause of the issue. The P0420 code is specific to the vehicle’s catalytic converter. P0174 is most often reported on Chevy and Ford vehicles. More About P0174 and Lean / Rich Codes. The ECM/PCM and the O2 sensor are all about keeping things balanced in the combustion chamber. If the mixture drifts too far out of balance, a rich or lean code is stored and ECM/PCM’s fuel trim strategy alters injector pulse width, …El código P0171 del Chevy Silverado es un código de problema de diagnóstico del tubo de recirculación de gases de escape (EGR) identificado por el módulo de control del motor (ECM). Este código aparece cuando el ECM detecta que la mezcla de combustible en el cilindro está desequilibrada y que el aire ambiente vs. el combustible no está ... Diagnosis of P0171 or P0174 Lean Code / Codes2004 CHEVROLET SILVERADO. 120,000 MILES. I am receiving a P0131, P0300, and a P0171. I replaced the Bank 1 Sensor 1 O2 sensor on 6/21/2013. I cleared all codes but by the next day the MIL was on and the same codes are back. I have also replaced the MAF sensor and put a bottle of GM fuel treatment through my system on two different tanks of gas.Jul 11, 2018 · P0171 and P0174 both indicate that there is a lean condition present in your Chevy Silverado. By themselves, these are some of the most common OBD2 codes. When they are together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning. 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 ...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 ...Feb 9, 2022 · 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 ... Jan 14, 2023 · 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. For More Info visit us at: http://1aau.to/h/cuX/Check engine light came on? Here are the most common check engine light codes for the 2001 to 2006 Chevy Silv...P0171 code triggers when a lean condition occurs in cylinder bank 1, and a lean condition in cylinder bank 2 triggers the P0174 code. Though the Engine/Powertrain Control Module (ECM/PCM) can restore a lean situation, it can only do so to a certain extent. So, the ECM/PCM stores the P0174 code to inform the user to fix this issue.Code P0300 Chevrolet Description. A misfiring cylinder causes slight variations in the rotational speed of the crankshaft. The Engine Control Module ( ECM) is able to detect these variations by closely monitoring the crankshaft position sensor signal. The signals of the camshaft position sensors are used to determine which cylinder is …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 ...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.What Does Code P0171 Mean for Your GM Vehicle? P0171 definition: Bank 1 has too much air or not enough fuel; Issue Severity: MODERATE– Extended driving with …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 ...Hey gang – wanted to share my experience working through the P0171 and P0174 (too lean bank 1 and too lean bank 2) codes. 2003 Tahoe LT 5.3 flex fuel engine, 79,700, bone stock. Background: I was tinkering with the truck a few weeks ago trying to see if I could eek out any more MPGs and...Feb 9, 2022 · 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 ... Rainman69 Discussion starter · #17 · Jan 2, 2018. I put in a new Delphi fuel pump and Maf sensor.The P0171 and P0174 codes went away.It could have been the Maf sensor or the crappy K&N intake might have been leaking.The fuel pressure is still low 50 with a new pump.I'm getting P0300 code at idle.When I hooked scanner up it's misfiring …Use the FIXD Sensor and app to diagnose P0507 yourself, see the most likely fix and cost for this code, access our Mechanic Hotline, and more. Common Reason: Code P0507 is often related to a vacuum leak. The P0507 code is triggered when the Engine Control Module (ECM) detects that the engine is idling higher than the specified idle …Mar 10, 2009 · P0171 System too Lean (Bank 1) P0174 System too Lean (Bank 2) If a car has a check engine light on and has P0171 and P0174 codes stored, the most likely cause is a vacuum leak. These codes are set by the car’s computer when it sees too much oxygen in the exhaust. Excessive oxygen readings in the exhaust will set lean codes. What is the Cost to Diagnose the Code P015B Chevrolet? Labor: 1.0. The cost to diagnose the P015B Chevrolet 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 Chevy Code: Fuel Trim System Too Lean (Bank 1) Fixes 27/02/2023 / Posted in OBD Codes / By Goran / Leave comment P0171 Chevy - What Is Causing This Trouble To Your Chevy? This article was recently reviewed by car expert Paul Hadley to ensure it is as accurate and helpful as possible.David 2000 Chevy Silverado 1500 (300,000km, and second motor) 4.3L 2wd standard cab, long box. I've still got crank windows! I've still got crank windows! ReplyRicky 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.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. It is common for most auto repair shops to charge between $75 and $150 per hour.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 ...The 2015 Chevy Silverado has a gross vehicle weight rating, or GVWR, of 9,500 lbs. This is the maximum operating weight as specified by the manufacturer. The gross value weight rating does not reflect the vehicle’s actual weight; rather, it...The cost to diagnose the P0171 2014 Chevrolet Silverado 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.A code P0171 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the …Book Konotori no Sato no Yado, Konosu on Tripadvisor: See traveler reviews, 5 candid photos, and great deals for Konotori no Sato no Yado at Tripadvisor.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 …The weight of a Chevy Silverado varies based on the model, cab type, bed size and engine type. For example the 2015 Chevy Silverado 1500 with a regular cab and long box weighs 4,689 pounds with a 4.3-liter, V6 engine or 4,792 pounds with a ...What does this mean? Code P0171 2018 Chevrolet Silverado Possible Causes Dirty or Restricted Air Filter Dirty or Faulty Mass Air Flow (MAF) Sensor Intake …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 ofWhen your powertrain/engine control module receives a reading that indicates there’s too much oxygen and the ratio is incorrect, it sends an error code P0171 or P0174. Depending on the problem, it may send both codes if the issue is causing a lean condition on both engine banks.Code P0171 2017 Chevrolet Silverado Tech Notes. The P0171 code means that more air than gasoline is detected in the exhaust gases exiting the combustion …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.Feb 14, 2012 · 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... 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...Nov 22, 2018 · Oxygen Sensor – The P0175 code is thrown when the B2S1 O2 sensor does not register the right amount of oxygen in the exhaust. The computer will still adjust the air/fuel mixture to compensate. A bad O2 sensor will show a lean mixture more often, though. Mass Air Flow Sensor – Your Silverado’s mass air flow sensor calculates the volume of ... P0171and P0174 CODES CHEVY VORTEC ENGINE.Ron WilliamsMobile Fix Automotive26793 Madison Ave Suite 100Murrieta, Ca. 92562951-579-7146Website http://www.mobile...WARNING!!! You must properly torque replacement knock sensors or you may experience a return code and sensor failure. Watch this supplemental video for addit...Jun 28, 2019 · Chevrolet Silverado 1500 Classic LS: I have a 2002 chevy silverado I have a 2002 chevy silverado w/5.3L V8, was receiving the P0171 & p0174 codes, replaced the MAF and now receive the P0101 code with an occasional P0175 code. What is the Cost to Diagnose the Code P0171 2015 Chevrolet Silverado? Labor: 1.0. To diagnose the P0171 2015 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.What is the Cost to Diagnose the Code P015B Chevrolet? Labor: 1.0. The cost to diagnose the P015B Chevrolet 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.Code P0442 Chevrolet Tech Notes. The P0442 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). A loose fuel tank filler cap is the most common cause that will trigger the P0442 code. There is a factory service bulletin for all the models from 2000 through 2021. The factory states that there are seven ...This code typically indicates that there is an issue with the wiring or harness going to the sensor, or the sensor itself is bad. There are other things that cause P0157 to populate. We’ll cover those below. Bank 2 refers to the side of the engine with Cylinder 2 in the firing order. Sensor 2 is downstream of the catalytic converter.What does this mean? Code P0171 2018 Chevrolet Silverado Possible Causes Dirty or Restricted Air Filter Dirty or Faulty Mass Air Flow (MAF) Sensor Intake …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.Apr 17, 2023 · The best years of the Chevrolet Silverado are 2013-2014, 2015-2018, 2019-2021, and 2010-2011. The years you should absolutely avoid are 2001-2002, 2003-2005, 2006-2009, and 2012. Most issues are related to engine problems, but there’s also a possibility of transmission malfunctions and brake failure. Brian Jones. April 17, 2023. 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. To diagnose the P0171 Chevrolet 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.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 …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...2002 silverado 1500 4x4 5.3 l engine codes p0101 p0300 i have a 02 chevy silverado 5.3 liter 83000 mile replaced maf sensor o2 sensors before cat still getting p0101 and p0300 codes can anyone help me ... 2003 avalanche code P0101 P0171 P0174 2003 Alvalanche with a 5.3 showing above codes, shows multi misfire. Idles rough at times, mileage is bad.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. Diagnosis of P0171 or P0174 Lean Code / CodesNov 26, 2019 · 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. Most often, mechanics will fix the fault, reset the computer, and drive the vehicle to see if the P0300s reappear. The most important trouble code here and the real identifier that a vacuum leak exists is OBD-II trouble code P0171. P0171 is pretty straight forward in that it tells us that the engine computer has detected unmetered air.P0113 is a generic diagnostic trouble code that applies to all OBD-II-equipped vehicles. It indicates a signal coming from the Intake Air Temperature (IAT) sensor that is higher than the manufacturer’s specifications. The IAT sensor is a thermistor with various readings based on air temperature. The powertrain control module (PCM) is ...2012 Chevy Cruze : P015B, P0171, P2270 My 2012 Cruze is throwing the following fault codes (no apparent performance issues) P015B O2 Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1 P0171 System too lean, bank 1 P2270 O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 Can someone give me a lead on what could be the issue?Jun 28, 2019 · Chevrolet Silverado 1500 Classic LS: I have a 2002 chevy silverado I have a 2002 chevy silverado w/5.3L V8, was receiving the P0171 & p0174 codes, replaced the MAF and now receive the P0101 code with an occasional P0175 code. P0171 Chevy Silverado. When it comes to the P0171 Chevy Silverado is almost the same story when it comes to diagnosing the issue. What is different is that the …codes P0068 P0101 P0106 P0131 P0137 P0171 P0324 P0326 P0331 P0506 P2097. Cause If service information does not lead to a solution, inspect the intake manifold bolts for being loose. Correction: If the intake manifold bolts were loose, torque them to proper specification. Replacing the intake manifold gasket is typically not necessary. …Diagnosis: Driving with trouble code P0137 is acceptable but only for a short period of time. Driving with this code for an elongated period of time could result in greater engine damage if it is being caused by a lean air/fuel ratio. Common Reason: Code P0137 is often related to a bad O2 Sensor. Oxygen sensor 2 is the downstream oxygen sensor ...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.Document ID: 2074199. #PIP3605A: CTC U0101. No engine crank and no communication with TCM. Feb. 29,2008. Models affected: 2006-2007 Chevrolet Silverado Classic. 2007-2008 Chevrolet Silverado. Equipped with Allison LCT-1000 (RPO-MW7)Automatic Transmissions. Customer may comment that the vehicle will not crank …1. Views. 460. Aug 28, 2023. zora. Sal, the Administrator of this community, has something new coming for Chevy owners... by communicate often. Discussions regarding the Chevrolet Silverado.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 ... Rainman69 Discussion starter · #17 · Jan 2, 2018. I put in a new Delphi fuel pump and Maf sensor.The P0171 and P0174 codes went away.It could have been the Maf sensor or the crappy K&N intake might have been leaking.The fuel pressure is still low 50 with a new pump.I'm getting P0300 code at idle.When I hooked scanner up it's misfiring …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.from. $823.32. per adult. Shopping and Personal-color analysis in Ueno. Shopping Tours. from. $15.00. per adult. 3-Hour Manga Drawing Workshop in Tokyo.P0106 definition: Manifold Air Pressure (MAP) Barometric Pressure Sensor Electric Circuit Output Range and Performance Problem. Repair Urgency: Fix this code immediately (same day if possible) to avoid damage to your emission system and internal engine damage. Diagnosis: When Code P0106 is triggered, it is important that you …Jan 31, 2014 · David 2000 Chevy Silverado 1500 (300,000km, and second motor) 4.3L 2wd standard cab, long box. I've still got crank windows! I've still got crank windows! Reply 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 ...
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That may include but is not limited to vehicles from Chevrolet, GMC, Dodge, Cadillac, Chrysler, Jeep, etc. So, you are faced with diagnosing a stored a code P050D. It means that the powertrain control module (PCM) has detected a rough engine idle during cold start. ... 2015 Silverado code P050D I keep getting a P050D code cold start/rough idle ...Dec 15, 2022 · 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... 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.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.A bad front knock sensor will cause a P0327 trouble code to set and the check engine light will illuminate on your Chevrolet Silverado (Suburban, Tahoe) GMC Sierra (Yukon, Yukon XL). The 4.8L, 5.3L, and 6.0L engines are notorious for corrosion, due to excessive moisture accumulating under the intake manifold, to disable the knock sensors.What is the Cost to Diagnose the Code P0171 Chevrolet? Labor: 1.0. The cost to diagnose the P0171 Chevrolet 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.=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈==== How to Fix P0174 =====Engine Code P0174 Saving Repair ...What is the Cost to Diagnose the Code P0171 Chevrolet? Labor: 1.0. The cost to diagnose the P0171 Chevrolet 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.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 signs of issues cold or warm.Most Common Causes Of P0171, P0174 DTCs. CAUSE 1: PCV tube's rubber elbow (where it connects to the intake manifold) is torn open and causing a major vacuum leak. CAUSE 2: Intake manifold gaskets or plenum gaskets are leaking vacuum. GM, in all its infinite wisdom, uses plastic and rubber gaskets for the intake manifold and plenum gaskets.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...=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code P0135 Saving Repair Part....