Air Induction System; Air Flow Meter (7M-Ge - Toyota Supra 1990 Manual

FI-94
POTENTIONMETER
EFI SYSTEM -
Air Induction System
AIR INDUCTION SYSTEM
Air Flow Meter (7M-GE)
Compensation Plate
Damping Chamber Compensation Plate
Return Spring
Air
Temp._~~
Sensor
."
FROM AIR
CLEANER
Ohmmeter
Measuring Plate
---- -- ------
-
-- -- - ----------
--
- - -
--,
,
FC
FI2432
FI0622
."
.... ....
TOAIR
INTAKE
CHAMBER
AIR
CLEANER
SIDE
AIR
INTAKE
CHAMBER
SIDE
Air By-Pass Passage
FI1286 FI0449
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
(n)
Temp.
°c
(OF)
E2 - VS 200 - 600
-
E2 - VC 200 - 400
-
10,000 - 20,000
-20 (-4)
4,000 - 7,000 0(32)
E2 - THA 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 ait flow meter connector.