Kohler LH630-775 Service Manual page 46

Section 5B
EFI Fuel System
Dual Aligning Rails
Corresponds
#10 In Main
Connector.
Test Terminals
Figure 5B-3. Speed Sensor Connector.
7. a. If the resistance is incorrect, remove the
screw securing the sensor to the mounting
bracket and replace the sensor.
b. If the resistance in step 2 was incorrect, but
the resistance of the sensor alone was correct,
test the main harness circuits between the
sensor connector terminals and the
corresponding pin terminals in the main
connector. Correct any observed problem,
reconnect the sensor, and perform step 5
again.
Throttle Position Sensor (TPS)
General
The throttle position sensor (TPS) is used to indicate
throttle plate angle to the ECU. Since the throttle (by
way of the governor) reacts to engine load, the angle
of the throttle plate is directly proportional to the
load on the engine.
5B.6
Corresponds To
#9 In Main
Connector.
Figure 5B-4. Throttle Position Sensor Details.
Figure 5B-5. TPS Location.
1 2
1. Throttle Valve Shaft
2. Resistor Track
3. Wiper Arm w/Wiper
4. Electrical Connection
3
4