AIR INDUCTION SYSTEM Air Flow Meter POTENTIOMETER Damping Chamber Return Spring Air Thermo- Sensor Compensation Plate Measuring Plate TO AIR INTAKE CHAMBER AIR CLEANER SIDE Air By-pass Passage Compensation Plate Measuring Plate AIR INTAKE CHAMBER SIDE Air By-pass Passage FROM AIR CLEANER F10449 F10440 ON-VEHICLE INSPECTION MEASURE RESISTANCE OF AIR FLOW METER (a) Unplug the wiring connector from the air flow meter. (b) Using an ohmmeter, measure the resistance between each terminal. Ohmmeter Fc E₁ E₂ Vc E₂ Vs THA Air Flow Meter F10054 Fc E₁ E₂ Vc E₂ Vs THA F10622 Between Terminals Resistance Temperature E₂ — V₄ 20 — 400 Ω — E₂ — V₅ 200 — 400 Ω — E₂ — THA 10 — 20 kΩ -20°C ( -4°F) 4 — 7 kΩ 0°C ( 32°F) 2 — 3 kΩ 20°C ( 68°F) 0.9 — 1.3 kΩ 40°C (104°F) 0.4 — 0.7 kΩ 60°C (140°F) E₁ — Fc Infinity — If not within specification, replace the air flow meter. REMOVAL OF AIR FLOW METER 1. DISCONNECT NO. 2 AND NO. 3 AIR CLEANER HOSES 2. DISCONNECT AIR FLOW METER CONNECTOR 3. REMOVE AIR FLOW METER Remove four nuts and one bolt and air flow meter. F10621