Kohler ECV880 Troubleshooting
| Engine Model: Kohler Command Pro ECV880 EFI |
| Engine Type: 4-cycle V-Twin cylinder vertical shaft air-cooled gasoline |
| Total Displacement: 50.3 cu.in (824 cc) |
| Rated Engine Power: 33 Hp (24.6 kW) at 3600 rpm |
| Fuel System Type: Electronic fuel injection (EFI) |
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| Engine hard to start or doesn't start |
Empty gas tank - Add fuel.
Wrong fuel grade - Change gasoline.
Air trapped in fuel system - Bleed air.
Spark plug wire connection are damaged - Inspect spark plug wiring connection, change or repair.
Damaged spark plug - Install new spark plug.
Dirty fuel filter - Fuel filter needs to be replaced.
Faulty safety switch - Change damaged switch.
Loose or defective crankshaft position sensor - Replace as required.
Improper setting or defective throttle position sensor - Replace or adjust throttle position sensor.
System voltage is low - Check voltage regulator and change as required.
Fuel injectors are faulty or clogged - Test fuel injectors and change if necessary.
Dirt in the fuel lines - Fuel lines must be clean.
Weak cylinder compression - Inspect cylinder block and change worn parts.
Not adjusted or damaged throttle cable - Adjust properly or replace the cable.
Cooling fins are clogged - Clean and wash as required.
Ignition failure - Test ignition and replace failed parts.
Defective or stuck throttle cable - Service or change the cable.
Clogged air filter - Change or service air filter.
Dirty or defective fuel pump - Test fuel pump and change if necessary.
Fuel injectors are clogged or faulty - Service or change fuel injectors.
Dirty fuel lines - Clean fuel system lines.
Incorrectly adjusted or faulty throttle position sensor - Throttle position sensor must be adjusted or replaced.
| Engine stalls after starting |
Faulty spark plug - Change spark plug as required.
Ignition coil is defective - Ignition coil should be replaced.
Bad or damaged valve springs - Valve springs need to be changed.
Valves sticking - Clean the valves.
Plugged fuel filter - Fuel filter needs changing.
Air filter is blocked - Change or service air filter.
Clogged fuel lines - Clean fuel lines.
Fuel injectors are dirty or defective - Service or replace fuel injectors.
Governor setting is improper - Governor needs to be adjusted correctly.
Insufficient engine oil - Checking oil level and add if necessary.
Excessive engine load - Load reducing required.
Cooling fins are plugged - Clean and wash as required.
Ignition timing is wrong - Set the ignition timing correctly.
Improper valve setting - Set the valves properly.
| Engine knocking sound or abnormal noise |
Low octane gasoline - Use correct fuel.
Excessive engine load - Reduce the load.
Not enough engine oil - Fill up the oil to required level.
Low idle speed setting is not correct - Adjust the low idle speed.
Fuel pump is defective or dirty - Service or change fuel pump.
Crankshaft or main bearings failure - Have bearings or crankshaft replaced.
Valve clearance is improper - Adjust valve clearance.
Damaged cylinder bore or piston rings - Change defective components.
Air filter element is plugged - Clean or replace air filter.
Dirty or damaged fuel pump - Test fuel pump and change if necessary.
Restricted fuel lines - Service fuel lines.
Wrong governor adjustment - Governor needs to be adjusted correctly.
One fuel injector failure - Check fuel injector and change if required.
Ignition system is defective - Test ignition and replace failed parts.
Blown cylinder head gasket - Change cylinder head gasket.
Stuck or burned valves - Change or clean valves.
Worn or defective push rod - Push rod should be replaced.
Cylinder block components are damaged - Replace defective components as required.
Oil filter is blocked - Clean or change oil filter.
| Engine uses too much fuel |
Insufficient throttle opening - Adjust or replace throttle cable.
Fuel injectors are defective or dirty - Test fuel injectors and change if necessary.
Loose or faulty spark plug - Re-tighten or change the spark plug.
Valves are stuck, worn, or burned - Change or clean valves.
Sleeve, rings, or piston are damaged - Change faulty components.
Valve clearance is improper - Adjustment procedure required.
| Excessive oil consumption |
Gaskets or seals can be faulty - Replace worn parts to avoid leaks.
Valve stems and guides are worn - Need to replace the valves.
Worn or broken piston rings - Change piston rings.
Damaged cylinder liner or piston - Inspect piston and liner, replace as required.
Breather hose or pipe is plugged - Clean or change.
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