Engine Temperature Sensor Test; Air Temperature Sensor (At) Test - Evinrude E-Tec 40 HP Service Manual

ELECTRICAL AND IGNITION
SENSOR TESTS
Connect red meter lea d to terminal "A" and black
meter lead to terminal "C." Rotate the sensor lever
through it s range of trave l. Resistance reading
must change evenly as the sensor lever is moved.
Connect red meter lead on terminal "B" and black
meter lea d to terminal "C." Ro tate the sensor
lever. Resistance reading must chang e evenly as
the sensor lever is moved.

Engine Temperature Sensor Test

Remove the ele ctrical connector from the engine
temperature sensor.
Use a digital multimeter to measure sensor resis-
tance.
Engine Temperature Sensor Resistance
680 Ω ± 5% @ 212°F (100°C)
10000 Ω ± 1% @ 77°F (25°C)
32654 Ω ± 2.5% @ 32°F (0°C)
1. Engine temperature sensor
96

Air Temperature Sensor (AT) Test

Remove the electrical connector from the air tem-
perature sensor.
Use a digital multimeter to measure sensor re sis-
tance.
680 Ω ± 5.25% @ 212°F (100°C)
10000 Ω ± 1.5% @ 77°F (25°C)
32654 Ω ± 3.0% @ 32°F (0°C)
1. AT sensor
1
006612
AT Sensor Resistance
1
006613