Kohler Command PRO ECH730 User Manual

5.1
Section 5
EFI Fuel System
5
Section 5
Electronic Fuel Injection (EFI)
System
Contents Page(s)
Description
Fuel Pump Module Connector Removal ................................................................................................................. 5.2
Initial Starting/Priming Procedure ........................................................................................................................... 5.2
Fuel Recommendations .............................................................................................................................................. 5.2
EFI Fuel System Components ................................................................................................................................... 5.3
Operation...................................................................................................................................................................... 5.3
Important Service Notes ...................................................................................................................................... 5.3-5.4
Electrical Components
Electronic Control Unit (ECU) ............................................................................................................................ 5.4-5.5
Wiring Harness ............................................................................................................................................................ 5.5
Electrical System ................................................................................................................................................... 5.5-5.8
Cranksha Position Sensor ........................................................................................................................................ 5.9
Thro le Position Sensor (TPS) and ECU Reset and TPS Learn Procedures ............................................... 5.9-5.11
Engine (Oil) Temperature Sensor ................................................................................................................... 5.11-5.12
Intake Air Temperature Sensor ............................................................................................................................... 5.12
Oxygen Sensor ................................................................................................................................................... 5.13-5.15
Manifold Absolute Pressure (MAP) Sensor .......................................................................................................... 5.16
Fuel Injectors ...................................................................................................................................................... 5.16-5.19
Ignition System .................................................................................................................................................. 5.19-5.20
Spark Plugs ................................................................................................................................................................ 5.20
Ba ery Charging System ......................................................................................................................................... 5.20
Fuel Components
Fuel Pump .......................................................................................................................................................... 5.20-5.22
Fuel Filter ................................................................................................................................................................... 5.22
High Pressure Fuel Line ................................................................................................................................... 5.22-5.23
Purge Port and Vent Hose Assembly ..................................................................................................................... 5.23
Thro le Body/Intake Manifold Assembly ............................................................................................................. 5.23
Idle Speed Adjustment (RPM)......................................................................................................................... 5.23-5.24
Initial Governor Adjustment ...........................................................................................................................5.24-5.25
Troubleshooting
Troubleshooting Guide............................................................................................................................................. 5.26
Fuel System ........................................................................................................................................................ 5.26-5.27
Fault Codes ....................................................................................................................................................... 5.27-5.35
Troubleshooting Flow Chart............................................................................................................................ 5.35-5.36
Flow Chart Diagnostic Aids ............................................................................................................................ 5.37-5.38
EFI Service Tools ................................................................................................................................Refer to Section 2

Kohler Command PRO ECH730 Specifications

General

Brand	Kohler
Model	Command PRO ECH730
Category	Crankshaft
Language	English