2008 Chevy Silverado P1175 was created by Cirp73. 2008 Chevy Silverado 5.3L 125k miles. So I have multiple issues I’m trying to solve. The first issues I have is the check engine light is on and my scanner shows a P1175 code. Now, it also had a P0174 before I cleared the codes after cleaning the Mass Air Flow Sensor and …The P0171 and P0174 are pointing to both banks running "lean". This means there is too much air or not enough fuel in the fuel/air mixture. When these codes are set together, there are a few different things that can cause this issue. First- a fuel pressure reading should be taken to ensure the fuel pump is working at normal capacity.If it’s bad enough, it can cause the engine to run rough. This is not very common, though. You may see P0171 or P0174 with this code if that’s the case. Chevy Silverado P0443 Causes ... Bad Charcoal Canister– A bad charcoal canister might be causing the P0443 code in your Chevy Silverado. The charcoal canister is an essential …Nov 21, 2023 · The generic description for the P0174 trouble code is System too lean, bank 2, which effectively means the engine is getting too much air or insufficient fuel. As a result, the air-fuel mixture will be far off the ideal 14.7:1 ratio necessary for the engine to run optimally and efficiently. Meet the Experts. 2018 Silverado 6.0 2500hd p0171 p0174 codes. truck has 1250. miles on it. Codes are p0171 and p0174. i did reset but - Answered by a verified Chevy Mechanic.2007 Chevy Silverado classic I have 2 code p0171 and p0174 when I turn want like turn off - Answered by a verified Chevy Mechanic. By chatting and providing personal info, ... I have lean codes on a 2001 chevy silverado motor is the 4.8 codes are p0174 and p0171. I've changed the valve by tank the valve on the top of the motor PVC …Jan 5, 2014 · Ok -Just went through this on mine. Same codes P0171 and P0174. Only 33000 miles. A local GM service manager told me it was probably intake gaskets - I changed them to the FelPro metal gaskets - $70 - Code came back - Put a Solus scanner on it and drove it. Feb 12, 2023 · The P0174 code means that the O2 sensor on bank 2 has recognized a too lean mixture, and the imbalance is too great for the O2 sensor to correct the issue on its own. The O2 sensor can correct a fuel mixture of +-15%. If the needed correction is out of this range, the P0174 code will be stored. 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/fixes-f...Feb 3, 2013 ... I have a 2000 Silverado 5.3 with the codes P0171, P0174, P0420. ... Chevy Silverado Forum (GMC Sierra) · FergusonT ... The code is (as seen above) ...Feb 26, 2015 · The following diagnosis might be helpful if the vehicle exhibits the described symptoms. Condition/Concern: Check Engine Light with a P0300 due to 2 - 4 cylinders misfiring on the same bank of the engine. DTCs P0171, P0172, P0174 or P0175 may also set for the misfiring bank. 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 ...I get p0171 and p0174 code on a 2003 chevy silverado 1500 5.3 t code i have changed fuel filter mass air flow sensor - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website.Engine Code P0171, P0174. Jump to Latest Follow 21 - 23 of 23 Posts. 1 2. B. blackerado · Registered ... A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! ...I'm getting codes p0101, p0171, p0174 after driving it from clearing the codes out. The van had codes p0101, p0171, p0174, p013e, p014a, p0158, p20 ... I have lean codes on a 2001 chevy silverado motor is the 4.8 codes are p0174 and p0171. I've changed the valve by tank the valve on the top of the motor PVC valve plugs wires.Just got the following codes off my truck when the CEL came on: P0101, P0171, P0174, P0327 I pulled the intake all the way off including the manifold, gave it a good cleaning (including the MAF) and drove it around a bit only to have them come back. ... 2006 Chevrolet Silverado 1500HD 4x4 Metallic Silver, Duraline Bed liner, MT Tires …Jan 3, 2013 · If anyone's ever corrected the P0171/P0174 codes, please speak up! Save Share. Like. T. ... Chevy Silverado and GMC Sierra Forum. 1.4M posts 182.9K members A P0174 code in a Chevy is an indication of a lean fuel condition (aka the engine is running lean). This means that the air-fuel ratio is too high, meaning there is too much air and not enough fuel. Common symptoms associated with this code include: 1. Poor engine performance: The vehicle may experience reduced power, and hesitation …Chevrolet Silverado 1500: I have lean codes on a 2001 chevy. I have lean codes on a 2001 chevy silverado motor is the 4.8 codes are p0174 and p0171. I've changed the valve by tank the valve on the top … read more. ZZDaryl. Lead Auto Tech.The 2015 Chevy Silverado 1500 is a reliable, powerful, and comfortable pickup truck that has been a top choice for drivers for years. The 2015 Chevy Silverado 1500 is powered by a ...The most common causes of codes P0171 and P0174 include: Vacuum Leaks: Vacuum leaks occur when there's an unintended gap or hole in the intake system of the engine, allowing extra unmetered air to enter it. This disrupts the air/fuel mixture, leading to a lean condition and triggering codes P0171 and P0174.P0174 code on a 2000 Silverado. The code indicates that the cylinder bank 2 (Passenger side) is running lean, as reported by the upstream O2 sensor on that side on the exhaust pipe. It could really be running lean, or it could be …Chevy silverado 2006 4.3 stalling Codes p0118 p0174 p0171 - Answered by a verified GM Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.P0174 indicates Bank 2 of the engine has a lean fuel mixture. Engine Bank 1 is the same side of the engine as Engine Cylinder 1. Engine Bank 2 is the opposite side of the engine. A firing order and cylinder location diagram may be needed to see which side of the engine is Bank 1 or Bank 2.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 ...The following are the most common causes of the P0174 code. Faulty mass airflow (MAF) sensor. Blockage in the fuel filter and fuel injectors. The fuel pump is getting weak. Weakening fuel pressure regulator. The vacuum connector or PCV line may have cracks or damage. Defective oxygen sensor. Issues with PCM.Alternatively, intake and exhaust leaks can also throw off your trims leading to such codes. Did you used to get 15 mpg with E85? 2009 GMC Yukon XL SLT 5.3 K5L - 2012 GMC Sierra SLT 6.2 NHT - 2013 GMC Sierra SLT 6.2 GAT. “Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter …May 3, 2016 ... P0171 and P0174 means that both upstream oxygen sensors are reporting a lean fuel mixture. Both DTC's need to be properly diagnosed, it doesn't ...When the P0171/P0174 code sets, the oxygen sensors are detecting too little oxygen in the exhaust and the control module is adding more fuel ...Jan 3, 2013 · If anyone's ever corrected the P0171/P0174 codes, please speak up! Save Share. Like. T. ... Chevy Silverado and GMC Sierra Forum. 1.4M posts 182.9K members 8 posts · Joined 2024. #1 · Mar 1, 2024. Hello, 2004, 2500HD, 6.0L, 4X4 with 131,000 miles all original no after market modes. I have P0171 and P0174 codes. My effort. New -. Fuel Tank Pressure Sensor, Gas Cap,Canister Purge Valve, Evap canister vent solenoid, fuel pump (55psi running), Mass flow sensor, air filter. Basically every item new ...Hi Everyone: So I did the fuel injector cleaning just for the Injectors, the engine ran a little better but still high fuel trims!The engine was full of carb...The P0175 code means that more gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0175 is set in along with the P0172 code, it is highly likely that the problem is caused by leaking fuel injectors. If there are no leaking fuel injectors, the next step is to replace the air filter and clean the Mass Air Flow (MAF ...With its 1950s styling, the 1957 Chevy is a timeless car. This article will show you how to draw this cool classic car in just five simple steps. Advertisement The 1957 Chevy is on...Sep 22, 2009 ... Check Engine Code p0171 p0174 . What you ... P0171 System Too Lean bank 1 Chevy Trailblazer "Fixed with no parts" ... P0171 code solved. Your Car .....What causes a p0171 and p0174 code in 2003 Chevy silver - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... 2003 chevrolet silverado 5.3 i get a p0171 and p0174 code i have changed fuel filter, have changed spark plugs, ...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.213 posts · Joined 2011. #2 · Oct 18, 2011. P1174 indicates fuel trim cylinder balance malfunction. This means that your cylinder-to-cylinder air to fuel ratio is not balanced properly. Usually caused by a faulty heated oxygen sensor located on the exhaust or a simple vacuum leak. It will not harm your vehicle but it will lower your fuel ...I have a new body style 2007 GMC sierra vortec max and recently have been getting P0171/P0174 lean conditions in bank 1 and bank 2 and I cant figure it out. SYMPTOMS: Check engine light. Stabilitrak/Traction control off/service randomly comes on, mostly at a stop or lower speeds. Stall/sputter @ idle, especially if started with the remote start ...Nov 21, 2023 · The generic description for the P0174 trouble code is System too lean, bank 2, which effectively means the engine is getting too much air or insufficient fuel. As a result, the air-fuel mixture will be far off the ideal 14.7:1 ratio necessary for the engine to run optimally and efficiently. Those P0172 P0175 Chevy Silverado codes say your engine runs too rich on both banks (engine’s banks 1 and 2). While P0175 will pop up when the bank 2 oxygen sensor detects the oxy deficiency or too much fuel amount in the engine, P0172 functions similarly under the bank 1 oxygen sensor’s control.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 …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.The P0171 and P0174 are pointing to both banks running "lean". This means there is too much air or not enough fuel in the fuel/air mixture. When these codes are set together, there are a few different things that can cause this issue. First- a fuel pressure reading should be taken to ensure the fuel pump is working at normal capacity.Jun 2, 2021 ... This 2015 GMC was brought in due to rough idle and the MIL on. Scan retrieved codes P0171 and P0174. Problem was under reporting MAF sensor ...A failure counter increments if the stuck EGR valve condition is still present. This DTC sets when the counter reaches a predetermined value. This would cause the P0171 and P0174 to set. I have attached three documents that may help, View attachment P1404 EGR Valve Closed Pintle Position.docx View attachment Exhaust Gas Recirculation Service ...Dec 15, 2022 ... Comments2 ; Causes of lean condition trouble codes P0171, P0174 - GM 5 3L. ScannerDanner · 976K views ; p0171 and p0174. James Davis · 55K views.Test drive Used Chevrolet Silverado 1500 at home in Ashburn, VA. Search from 489 Used Chevrolet Silverado 1500 cars for sale, including a 2011 Chevrolet Silverado 1500 LT, …With its 1950s styling, the 1957 Chevy is a timeless car. This article will show you how to draw this cool classic car in just five simple steps. Advertisement The 1957 Chevy is on...How To Fix – Chevy Silverado P0171 Trouble Code. By. John Huh - November 26, 2019. 1. SHARE. ... P0174 – Lean diagnostic trouble code; Possible Causes of P0171 ...P0172 And P0175 Chevy Silverado Codes: Possible Reasons & Fixes. In short, P0172 refers to bank 1 having a rich fuel mixture to the engine. It’s the same for P0172 but for bank 2 instead. Both of these get triggered by the upstream oxygen sensor in your Chevy Silverado. A rich fuel mixture basically means that there’s either too much fuel ...The 2019 Chevy Silverado 1500 LTZ is the perfect truck for those who want to cruise in style. With its sleek design, powerful engine, and luxurious interior, this truck is sure to ...2012 6.0 vortec gas. p0174 right bank code. ... well, hauling my 67 gran prix to day, the above code came up, pulled into auto zone for diagnosis. as usual, could be anyone of 6 things, so, further researching led me to mass airflow sensor, or o2 sensor as the more usual culprit,, ... A forum community dedicated to Chevrolet Silverado and …2007 Chevy Silverado classic I have 2 code p0171 and p0174 when I turn want like turn off - Answered by a verified Chevy Mechanic. By chatting and providing personal info, ... I have lean codes on a 2001 chevy silverado motor is the 4.8 codes are p0174 and p0171. I've changed the valve by tank the valve on the top of the motor PVC …Jan 4, 2013 · P0174 code on a 2000 Silverado. The code indicates that the cylinder bank 2 (Passenger side) is running lean, as reported by the upstream O2 sensor on that side on the exhaust pipe. It could really be running lean, or it could be an O2 sensor going out and reporting false values. 4 days ago ... Code p0174 chevy silverado. Things To Know About Code p0174 chevy silverado. Engine Code P0174: System Too Lean (Bank 2). The fuel system is ...Dec 24, 2014 · I had posted on December the 1st in anothers post that I also got the P0171 and P0174 codes, both banks lean. ... Chevy Silverado EV Forum 2K+ members. Home. Faulty oxygen sensor. Incorrect fuel pressure. Leaking positive crankcase ventilation (PCV) valve. Clogged exhaust gas recirculation (EGR) Port. Leaking brake booster. Repairs to Fix the P0174 Code. The following are some possible repairs for the P0174 code, depending on the source of the issue: Replacing mass air flow sensor.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 ...P0171 and p0174 2002 Chevy Silverado. Her lately my truck has been pull codes p0171 and p0174. Which is for a lean condition on bank 1 and 2. Their is no vacume leak, the valve gasket is good. I'm thinking it's the mass air flow or the O2 sensors.Nov 22, 2014 · I have a new body style 2007 GMC sierra vortec max and recently have been getting P0171/P0174 lean conditions in bank 1 and bank 2 and I cant figure it out. SYMPTOMS: Check engine light. Stabilitrak/Traction control off/service randomly comes on, mostly at a stop or lower speeds. Stall/sputter @ idle, especially if started with the remote start ... Chevy silverado 2004 1500 code po449 e vap system vent control current low ... I have a 2007 Tahoe with a 5.3 it has three codes p0171 p0174 p0446 I have already replaced the evap canister valve purge solenoid fuel tank pressure switch ...Chevrolet Silverado 1500 (New Model) 2019 2019 Equipped with 5.3L or 6.2L Engine (RPOs L84, L87) All GMC Sierra 1500 ... Technician may find DTCs P0171 and/or P0174 set or stored in history. ... Clear the ECU codes. 5. Start vehicle up, idle for 5 minutes in park, shut engine off, repeat (Total needs to be 2 times). 6. Verify if code/s return: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.The P0175 code means that more gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0175 is set in along with the P0172 code, it is highly likely that the problem is caused by leaking fuel injectors. If there are no leaking fuel injectors, the next step is to replace the air filter and clean the Mass Air Flow (MAF ...2007 Chevy Silverado 6.0 is getting P0171 and P0174. Ive replaced the brake switch because the C0561 came up also. It - Answered by a verified Chevy Mechanic. By chatting and providing personal info, ... I have codes p0171 p0172 p0174 p0175 p0300 p0573 p069e p0191 c0561 and c0299.The 2015 Chevy Silverado 1500 is a dependable and powerful truck that can handle all your needs. Whether you’re hauling heavy loads, towing a trailer, or just running errands aroun...If you’re using an OBD scanner, this shows up as code P0171 for bank 1, and code P0174 for bank 2. There are several possible causes: There is a leak between the MAF or MAP sensor and the rest of the intake, giving the ECU a false air reading.Feb 3, 2013 ... I have a 2000 Silverado 5.3 with the codes P0171, P0174, P0420. ... Chevy Silverado Forum (GMC Sierra) · FergusonT ... The code is (as seen above) ...Chevrolet GMC Involved Region or Country North America, Europe, Uzbekistan, Russia, Middle East, Iraq, Israel, Palestine, ... Initial diagnosis may display any of these misfire and/or fuel trim related codes: • P0300-P0308 • P050D • P0171 • P0172 • P0174 • P0175 • P2099 ... – 2016 SILVERADO 1500 4WD CREW CAB VIN ...Oct 18, 2017 · 6 years 6 months ago - 6 years 6 months ago #13991. 2008 Chevy Silverado 2500hd 6.0 P0174 and a p0171 was created by drogan. 2008 Silverado 2500 6.0 has a p0171 and a p0174. Intake was smoked with no leaks truck came to me with 8 new injectors a new fuel pump new map and mass air flow sensor and new intake gaskets. 4 days ago ... Code p0174 chevy silverado. Things To Know About Code p0174 chevy silverado. Engine Code P0174: System Too Lean (Bank 2). The fuel system is ...Help With Code p0451. Hello all, Irving here. I have a 2018 Chevy Silverado 4WD with the 5.3L. I pulled the code p0451. Im having trouble figuring out what it is, I’m reading that its the fuel tank pressure sensor and I'm also reading that it MAY be the fuel pressure sensor along with a location on where it is. 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 . Aug 9, 2023 ... Causes of lean condition trouble codes P0171, P0174 - GM 5 3L ... P0496 check engine code on Chevy 2014 Traverse ... 09-19 Silverado/Sierra/Aval.The following diagnosis might be helpful if the vehicle exhibits the described symptoms. Condition/Concern: Check Engine Light with a P0300 due to 2 - 4 cylinders misfiring on the same bank of the engine. DTCs P0171, P0172, P0174 or P0175 may also set for the misfiring bank.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 signs of issues cold or warm. P0174 code on a 2000 Silverado. The code indicates that the cylinder bank 2 (Passenger side) is running lean, as reported by the upstream O2 sensor on that side on the exhaust pipe. It could really be running lean, or it could be …6 years 6 months ago - 6 years 6 months ago #13991. 2008 Chevy Silverado 2500hd 6.0 P0174 and a p0171 was created by drogan. 2008 Silverado 2500 6.0 has a p0171 and a p0174. Intake was smoked with no leaks truck came to me with 8 new injectors a new fuel pump new map and mass air flow sensor and new intake gaskets.The cost to diagnose the P0174 2018 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.Fixing a code p0174 on a 2002 chevrolet silverado with ron bilyeu P0446 ecm replacing suggests corolla Chevy silverado p0171 and p0174 trouble codes. P0171 p0174 p0430 chevy. Silverado p0446 p0135 emission evaporative p0305 vent p0455 obdii leak malfunction detected evap P0446 code 2014 chevy silverado Code silverado …Common Reason: Code P0174 is often related to a vacuum leak. Combustion engines run most efficiently when they maintain an air-fuel mixture ratio of 14.7 parts air to 1 part fuel. When there are more than 14.7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P0174 is triggered.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. By chatting and providing personal info, ... The trouble codes are p0300 p0174 p0171 on a 2002 chevy 5.3 ...Hi Everyone: So I did the fuel injector cleaning just for the Injectors, the engine ran a little better but still high fuel trims!The engine was full of carb...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 …How to fix Chevrolet or GMC P0174 engine code: System Too Lean (Cylinder Bank 2) A P0174 Code is set when the Bank-2 upstream sensor-1 oxygen sensor reports a lean air-fuel mixture. A lean...Dec 24, 2014 · I had posted on December the 1st in anothers post that I also got the P0171 and P0174 codes, both banks lean. ... Chevy Silverado EV Forum 2K+ members. Home. Recently bought a single cab short box 4.3L V6 1500 and drove it home, was talking to family and let it idle a bit then got a p0430 code. I reset it then next day I let it idle again for a little and now I see p0430, p0171 and p0174.Disconnect the sensor's electrical connector. Remove the oxygen sensor using a wrench or socket. Install the new oxygen sensor and tighten it properly. Reconnect the electrical connector. Start your engine and let it idle for a few minutes. Check the engine light to see if it's still on; check if the P0174 returns.I have a new body style 2007 GMC sierra vortec max and recently have been getting P0171/P0174 lean conditions in bank 1 and bank 2 and I cant figure it out. SYMPTOMS: Check engine light. Stabilitrak/Traction control off/service randomly comes on, mostly at a stop or lower speeds. Stall/sputter @ idle, especially if started with the …I have a new body style 2007 GMC sierra vortec max and recently have been getting P0171/P0174 lean conditions in bank 1 and bank 2 and I cant figure it out. SYMPTOMS: Check engine light. Stabilitrak/Traction control off/service randomly comes on, mostly at a stop or lower speeds. Stall/sputter @ idle, especially if started with the remote start ...
One of the most common trouble codes with the Chevy Tahoe is P0174. It indicates that your Chevy Tahoe 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 potential causes (more on that in the .... Rwby ruby
So today I was driving my 04 GMC Sierra 1500 4.8L V8 and the check engine light started blinking and it began to misfire. Used a code reader and got codes P0101 MAF Sensor Performance, P0171 Fuel Trim System Lean Bank 1, P0174 Fuel Trim System Lean Bank 2, and P0300 Engine Misfire Detected. I cleaned the MAF sensor and the problems …P0300 is wuch a generic code that it’s pretty difficult to pinpoint without first throwing some parts at it. If no improvement after plugs and wires, then it’s probably time to look at fuel system: injectors, fuel pump. 2016 Silverado LT 4x4 Crew Cab. 2017 Suburban LT. 2018 BMW K1600GTL.The code P0171 and P0174 are system lean codes and are almost always caused by a plugged fuel system or low fuel system pressure. The filter is part of the pump assembly so the first thing I can suggest is getting the fuel pressure tested. It is supposed to be 55-62 psi. Ask Your Own Chevy Question.Faulty oxygen sensor. Incorrect fuel pressure. Leaking positive crankcase ventilation (PCV) valve. Clogged exhaust gas recirculation (EGR) Port. Leaking brake booster. Repairs to …P0171 and P0174 all indicate the engine is running lean. Not enough fuel or too much air such as a vacuum leak. P0300 indicate that the engine is misfiring, likely due to the fact that it is running lean. P0101 indicate a Mass AirFlow sensor reading being irrational. Possibly because the sensor has failed of there is a vacuum leak which will ...In this video I have a look at a 2008 Chevrolet Silverado 1500 5.3 that came in with codes P0171 and P0174 indicating that the engine is running lean. It doe...That means that the passenger side was showing lean quite possibly from an exhaust leak, loose O2 sensor, or other problem. I would scan it to ...The P0151 code is an OBD-II diagnostic trouble code that indicates low voltage in the Chevy Silverado's Oxygen (O2) sensor circuit located at Bank 2, Sensor 1 (B2S1). The B2S1 O2 sensor plays a crucial role in maintaining optimal engine performance by detecting the air-fuel ratio in the exhaust, then sending this data to the.2002 Chevy Silverado CHECK CODE P0171 AND P0174. Home. Chevrolet. Silverado. Trouble Codes. P Codes (Powertrain) P0100 - P0199. P0174.2002 Chevy Silverado CHECK CODE P0171 AND P0174. Home. Chevrolet. Silverado. Trouble Codes. P Codes (Powertrain) P0100 - P0199. P0174.P0443 indicates a problem with the wiring to/from the purge valve or that the purge valve solenoid has a short/open circuit. It typically won’t affect the way that your Silverado runs. You may smell gas. Most commonly caused by a bad purge valve solenoid. Checking the gas cap may just save a lot of time.May 22, 2010 · I get p0171 and p0174 code on a 2003 chevy silverado 1500 5.3 t code i have changed fuel filter mass air flow sensor - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. The following are the most common causes of the P0174 code. Faulty mass airflow (MAF) sensor. Blockage in the fuel filter and fuel injectors. The fuel pump is getting weak. Weakening fuel pressure regulator. The vacuum connector or PCV line may have cracks or damage. Defective oxygen sensor. Issues with PCM. So today I was driving my 04 GMC Sierra 1500 4.8L V8 and the check engine light started blinking and it began to misfire. Used a code reader and got codes P0101 MAF Sensor Performance, P0171 Fuel Trim System Lean Bank 1, P0174 Fuel Trim System Lean Bank 2, and P0300 Engine Misfire Detected. I cleaned the MAF sensor and the problems …May 14, 2018 · P0171, P0174, P0300. Hello everyone, first time on this forum but my trucks got me stumped. Im trying to get my truck to pass emissions, but I've got DTCs and that's an automatic fail where I live. The previous owner sold it because he couldn't get it to pass emissions either, so far I've changed the intake manifold gaskets and MAF sensor, the ... Engine Code P0171, P0174. ... A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Show Less . Full Forum Listing.P0138 is a common OBDII code that occurs in many vehicles, including the Chevy Silverado. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more. Voltage to the sensor is to high (wiring problem, think short) Bad O2 sensor itself. There are also some less likely problems that can cause P0138..