LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2018 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control/Fuel Injection System (H4DOTC) >> Mass Air Flow and Intake Air Temperature Sensor >> Inspection >> Check The Mass Air Flow Sensor Unit
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Check The Mass Air Flow Sensor Unit

  1. Connect the battery positive terminal to terminal No. 1 and the battery ground terminal to terminal No. 2, the circuit tester positive terminal to terminal No. 3 and the circuit tester ground terminal to terminal No. 2.
    G12509011Courtesy of SUBARU OF AMERICA, INC.
  2. Check the voltage changes when air is blown to the mass air flow sensor unit in arrow direction.
    G12509012Courtesy of SUBARU OF AMERICA, INC.
scientia non olet · About LEMON Manuals