Table of Contents
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ECV940 & ECV980
Service Manual
IMPORTANT:
Read all safety precautions and instructions carefully before operating equipment. Refer to operating
instruction of equipment that this engine powers.
Ensure engine is stopped and level before performing any maintenance or service.
2
Safety
3
Maintenance
5
Specifi cations
18
Tools and Aids
21
Troubleshooting
26
Air Cleaner/Intake
27
Electronic Fuel Injection (EFI) System Electronic Throttle Body (ETB)
57
Electronic Fuel Injection (EFI) System
86
Governor System
112
Lubrication System
114
Electrical System
121
Starter System
125
Disassembly/Inspection and Service
151
Reassembly
62 690 05 Rev. H
KohlerEngines.com
1
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Table of Contents
Troubleshooting
Need help?
Do you have a question about the ECV940 and is the answer not in the manual?
Questions and answers
Check engine light flickers dimly at startup and flicker continues. After period of us, light becomes full bright. Have opulled O2 sensor, cleaned off carbon buildup and reinstalled. Problem continues. Mower seems to run fine at operating speed, a bit rough at idle.
A dimly flickering check engine light (MIL) at startup that becomes fully bright could be caused by one or more of the following:
- MIL electrical circuit problem
- MIL light bulb issue (e.g., drawing too much current or burned out)
- ECU grounds issue (e.g., poor connection)
- Ignition switch problem
- Switched or permanent ECU power circuit problem
These issues can affect how the MIL behaves during startup.
This answer is automatically generated