38
TROUBLESHOOTING
EN
GLISH
B
When engine speed is insufficient
B
When engine suddenly stops
B
When excessive black exhaust gas is observed
B
When white exhaust gas is observed
B
When lubricant oil consumption is excessive
Cause
Countermeasures
Improper or defective spark plug
* Clean or replace.
Defective ignition coil
* Replace.
Defective throttle body
* Replace.
Breather tube has separated.
* Attach correctly.
Improper input signal to ECU
* Check the wire harness.
Disconnection
* Check the wire harness.
Cause
Countermeasures
Lack of fuel
*
*
Check the fuel tank and refill the fuel, if necessary.
Also check the fuel system for air or leaks.
Moving parts are overheated due to
shortage of lubrication oil or improper
lubrication.
*
*
*
Check amount of engine oil with oil level gauge.
Check lubricating oil system.
Replace oil filter cartridge.
Clogged air cleaner
* Clean or replace.
Disconnection
* Check the wire harness.
Cause
Countermeasures
Fuel system is bad.
* Check the fuel system.
Fuel is extremely poor quality.
* Replace fuel.
Cause
Countermeasures
Excessive engine oil
* Reduce to specified level.
Piston ring and liner worn or stuck
* Replace.
Defective valve stem seal
* Replace.
Cause
Countermeasures
Oil leaking from oil seal, gasket, etc.
* Replace.
Defective valve stem seal
* Replace.
Piston ring and liner worn or stuck
* Replace.
EG523-8917_E.book Page 38 Friday, May 17, 2019 10:32 AM
