TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
p.093
FI/EFI System94 / 126
p.095
AIR INDUCTION SYSTEM
Air Flow Meter (7M-GE) — MK3 Supra EFI System, page 94
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FI-94 EFI SYSTEM — Air Induction System AIR INDUCTION SYSTEM Air Flow Meter (7M-GE) POTENTIONMETER Damping Chamber Compensation Plate Return Spring Air Temp. Sensor FROM AIR CLEANER Measuring Plate TO AIR INTAKE CHAMBER AIR CLEANER SIDE Air By-Pass Passage Compensation Plate AIR INTAKE CHAMBER SIDE Measuring Plate Air By-Pass Passage FI12M-FI04431 FC E1E2 VC E2 VS THA Ohmmeter FI0432 FC E1 E2 VC E2 VS THA FI0632 ON-VEHICLE INSPECTION INSPECT RESISTANCE OF AIR FLOW METER (a) Disconnect the air flow meter connector. (b) Using an ohmmeter, measure the resistance between each terminal. Between terminals | Resistance (Ω) | Temp. °C (°F) E2 — VS | 200 - 600 | — E2 — VC | 200 - 400 | — E2 — THA | 10,000 - 20,000 | -20 (-4) | 4,000 - 7,000 | 0 (32) | 2,000 - 3,000 | 20 (68) | 900 - 1,300 | 40 (104) | 400 - 700 | 60 (140) E1 — FC | Infinity | — If the resistance is not as specified, replace the air flow meter. (c) Reconnect the air flow meter connector.