
95
ELECTRICAL AND IGNITION
SENSOR TESTS
6
SENSOR TESTS
All senso r circu its a re de pendent o n wiring a nd
connections,
EMM
supplied current (5 V), a nd
sensor resist ance. The supplied current flows
through the wiring circuit
and sensor be fore
returning to the
EMM
.
IMPORTANT:
Use
Evinrude Diagnostics
sof t-
ware to monitor sensor circuit voltages or values.
Crankshaft Position Sensor (CPS)
Test
Use the
Evinrude
Diagnostics
software CPS Sync
and engine RPM displays to confirm a valid CPS
signal while the outboa rd is cranking or running.
An RPM display higher than zero indicates a CPS
signal to the
EMM
.
Disconnect the crankshaft position sensor.
Use a digital multimeter to measure sensor resis-
tance betwee n the yellow a nd white wires. The
complete circuit can b e tested by measuring
between pins 6 and 7 of the
EMM
J1-A connector.
The CPS is mount ed to the throttle body housing
and requires no adjustment. Air gap or clearance
to flywheel is fixed at approximately
0.073 in.
(1.85 mm). The acceptable clearance is 0 .036 to
0.110 in. (1 to 2.8 mm).
Throttle Position Sensor (TPS) Test
Use
Evinrude
Diagnostics
sof tware to monitor
TPS volt age while the ou tboard is running. Volt-
age sho uld change evenly as se nsor lever is
moved.
Remove the electrical co nnector from the throttle
position sensor.
Use a digital multimeter to measure sensor resis-
tance.
Sensor Resistance
560
Ω
± 10% @ 77°F (25°C)
1.
CPS Connector
002286
1
1.
CPS gap
006527
Sensor Resistance between “A” and “B”
3000 to 7000
Ω
@ 77°F (25°C)
Sensor Resistance between “A” and “C”
4000 to 8000
Ω
@ 77°F (25°C)
1.
TPS
002289
1
1
Содержание E-Tec 40 HP
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