Back to codes list

Fault Code P0171

Code meaning, symptoms, possible causes, part number, and estimated cost.

P0171

System Too Lean (Bank 1)

Severity: Medium

The vehicle's computer detects that the air-fuel mixture is too lean (too much air relative to fuel) in Bank 1 of the engine.

Part Details

Part Name

Mass Air Flow Sensor (MAF Sensor)

Reference P/N (OEM)

22204-22010

General part number for this fault code — not necessarily for your specific vehicle

Estimated Cost

₪300 - ₪800

Engine Location

Air intake hose — between air filter and air intake

Symptoms

  • Unstable idle
  • Difficulty starting
  • Loss of power during acceleration
  • High fuel consumption

Possible Causes

  • 1Dirty or faulty MAF sensor
  • 2Vacuum leak
  • 3Clogged air filter
  • 4Fuel injector problem

AI Smart Part Finder

The AI will search where to buy part number 22204-22010 online and display suppliers, prices, and availability estimates.