Page text (OCR transcript)
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
