Did you know?

He said it would be the fuel pressure regulator. 1998 Chevy Silverado 1500 4 - W 5.7 Vortec. Warning lights = check engine soon. Computer codes = P0174 Bank 2, P0171 Bank 1. Repairs made= New fuel pump - replaced fuel pressure regulator (FPR) - cleaned the mass air flow sensor ( MAF ), replaced fuel filter and o2 sensors.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 …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. Examine The Easily Checkable Items.Jan 2, 2019 ... 1999 Chevy S10 Pickup 4.3 Customer complaint is low power and the check engine light is on. Understanding ST and LT Fuel trim was the key to ...2 posts · Joined 2021. #1 · Apr 3, 2021. I ran a P0174 code the other day while driving but the truck ran like normal, had no weird noises, or weird idle. I opened the hood and cleaned the MAF sensor and listened for vacuum leaks but couldn't find anything. I reset the truck but the codes came back after I drive for about an hour.A P1174 & P1175 trouble code means that your air to fuel ratio is either running too lean or too rich. Engines will have two banks. In traditional V-shaped engines, the 2-4 cylinders (depending on whether it is a V4 or V8, etc.) on the left side are considered “Bank 1” and the cylinder on the left are considered “Bank 2”.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. 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 …The following diagnosis might be helpful if the vehicle exhibits the described symptoms. 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. Perform a fuel injector balance test for all 8 cylinders.My truck will start right up in the cold at a high idle but then will stall out after a few seconds. This issue only occurs whenever the temp dips below around 40 degrees F. Getting engine codes P0171 & P0174. Truck also sputters and acts like it's going to die when it rains.21 posts · Joined 2010. #1 · Feb 3, 2013. Hey everybody, I have a 2000 Silverado 5.3 with the codes P0171, P0174, P0420. I am completely stumped right now. My mechanic replaced the intake manifold gasket, which was blown, as well as the MAF. I know P0420 is catalytic converter but here's the thing.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.I am getting intermittent P0171 and P0174 (O2 sensors) codes along with a very intermittent P0107, P0101, and P0300 (misfires on cylder 1 and 7 and random cylinder misfire). ... A forum community dedicated to Chevrolet Silverado and GMC Sierra pickup owners and enthusiasts. Come join the discussion about performance, modifications, …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 too large to maintain the proper mixture, the fault codes P0171 and P0174 are logged. They are logged together since, in V8 and V6 (and …Tech Notes. 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 ...P0174 Chevy Silverado. Incorrect fuel injection operation frequently results in the Chevy Silverado throwing the P0174 code. Typically, a lean engine condition will set off the code. P0174 often doesn’t cause any drivability problems.Mar 10, 2022 ... Chevy silverado, lean code diag with 02 sensors.The following diagnosis might be helpful if the A new one for me, and probably most of ya'll. Never seen Dec 3, 2020 ... Check Engine Light? System Too Lean - Code P0171 or P0174 on Your Car or Truck. 1A Auto: Repair Tips & Secrets Only Mechanics Know•1.1M views. Silverado p0171 sensorCode p0174 chevy silverado 2003 c Trouble Code - P0171, P0174. Been getting occasional P0171, P0174 codes but the truck (07-13 Silverado 1500) runs great, idles great and is otherwise not having any performance issues at all. I cleaned the MAF, and throttle body, and installed 4 new Oxygen Sensors (Denso) and still getting occasional P0171, P0174 codes. 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. I have an 03 Silverado 1500 LS 2WD with 4.8 L Thanks Jon

How to fix lean code on 4.8 engineRecently 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.How to Diagnose Code P0171-P0174 on a Chevy Silverado 2500 HD - YouTube. Brian Eslick from How to Automotive http://www.howtoautomotive.com takes …2000 Chevy Silverado brake issues. 1 '08 Silverado 1500 5.3L V8 electrical issues. 0. Why does my 1997 Suburban sometimes not get up and go? 2. 2001 Chevy Blazer- Odorless liquid coming out from the rear side next to the gas tank. 2. No lights or radio; won't turn over. Battery is fine. 0.

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 …P0171 definition: Bank 1 has too much air or not enough fuel. Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. Diagnosis: It is important to complete the entire diagnostic ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. How to fixes a Chevy Silverado 5.3L engine w. Possible cause: The FIXD wireless OBD2 scanner and free app for iPhone and Android translates you.