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6
Temperature Sensor in Air Flow Sensor
7
Air Flow Sensor Input
8
Air Flow Sensor Input
9
Air Flow Sensor Input
10
12Vdc from Battery
11
Not Used
12
Not Used
Input from Temperature Sensor II
13
14
Pulses to Injection Valves
15
Pulses to Injection Valves
16
Ground
17
Ground
18
Throttle Switch position Input
19
Not Used
20
Input from Pump Relay contacts
21
Not Used
22
Not Used
23
Not Used
24
Not Used
25
Not Used
Not Used
26
27
Temperature Sensor in Air Flow Sensor
Can measure between
pins 6 and 27 of the
ECU connector to verify
sensor is functioning
Can measure between
pins 7 and 8 to verify
movement of air flap.
Limiting Resistor inside
air flow sensor can be
measured between pins
7 -9 and 8-9
Present when ignition
switch is on. Dual relay
provides path for voltage
via pins 88z and 88a
and closed contacts of
relay.
Temperature Range
Value
0
F 2k – 3k Ω
68
0
F 7.5k – 12k Ω
14
0
F 250 – 400 Ω
176
Can measure pump
relay contacts in Air
Flow Sensor between
pins 10 and 20
Can measure between
pins 6 and 27 of the
ECU connector to verify
sensor is functioning
24
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