Check for other trouble codes P0171 means system too lean (bank 1) They will likely point you to what part of your car is malfunctioning
FORD P0171 System Too Lean Bank 1 P0174 System Too Lean Bank 2 - YouTube
Listen for an exhaust leak or vacuum leak within the engine
The exhaust leak should be close to the b1s1 o2 sensor
Inspect all of the hoses that connect The first step to diagnosing and fixing ford trouble code p0171 or any other related code is to leave this part of the. P0171 means your engine is running lean on bank 1 — the most common fix is cleaning the maf sensor ($8, 10 minutes) While no gasoline engine is immune to the causes that set code p0171, many ford applications have been particularly.
Diagnosing the p0171 code issue your vehicle’s onboard computer has triggered the p0171 code, indicating a lean fuel. A p0171 code signals a lean engine condition, often from vacuum leaks, a dirty maf sensor, or fuel issues, causing rough idle, misfires,.
