WebP0171 is a lean code caused by a vacuum leak, mass airflow failure, faulty PCV valve, or low fuel pressure. What causes code P0171 in a Chevy? A vacuum leak, which brings more air into the air-fuel mixture, or a poor fuel system, that does not inject enough fuel into the air-fuel mixture, can cause lean conditions in a Chevy. There aren’t usually any drivability issues associated with P0171. For most people, the first sign that anything is wrong is the check engine light. 1. Mileage-may or may not suffer depending on how much the air-fuel mixture has changed. 2. Misfire– If the air-fuel mixture has gotten too far from the 14.7:1 sweet … See more P0171 is a generic code, meaning it has the same definition for the Chevy Malibu as any other vehicle. See more The P0171 code is thrown when something has caused there to be too much air or not enough fuel. With that in mind, here are the … See more Here are the steps you can take to diagnose P0171 in the Chevy Malibu. 1. Check for other trouble codes. They will likely point you to what part of your car is malfunctioning. 2. Listen for an exhaust leak or vacuum leak … See more
P0171 Code Help 2014 Cruze Chevrolet Cruze Forums
WebJul 10, 2024 · Updated: July 10, 2024. 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. WebJan 4, 2024 · Fuel pressure 399. Intake manifold absolute pressure 25-26. Airflow rate from mass sensor 2.73gs. Absolute throttle position sensor idle 15.3, barely step on gas 17 to 16, step on gas to 21. O2 sensor b1s1 0.5-0.79. This was the readings when the code came back after that first visit: stft bank 1 0.8 - 10.2%. ltft 0.8. nerdy turtles tutor
p0171 Code - Fuel Trim System Too Lean (Bank 1) KBB
WebAug 15, 2024 · Causes of the P0171 code may include: A faulty fuel pressure regulator. A weak fuel pump. A clogged fuel filter. A faulty powertrain control module. A vacuum leak. Faulty injector (s) Faulty oxygen sensor (s) A faulty mass air flow sensor. 2024 Chevy SS Sedan • 6.2L LS3 V8/6-Speed Manual 2024 Chevy Cruze Hatchback • 1.4T/6-Speed … WebJan 2, 2024 · 2014 Chevy Malibu 2.5 ecotec p0171 with freeze frame with very high LTFT × Help us help you. By posting the year, make, model and engine near the beginning of … WebFeb 26, 2024 · 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. … nerdy t shirts cheap