Page 970 - Workshop Manual - Tunland (2017)
P. 970
04-284 DIAGNOSTICS - ENGINE CONTROL SYSTEM
04
Fault phenomenon Possible reasons Refer to
4. Fuel
1. Crankcase ventilation
system
Chapter 04 Diagnosis- the
2. Valve oil seal
Crankcase gas (channeling motor control system,
gas) overload 3. Piston ring crankcase gas (channeling
gas) overload
4. Valve guide
5. Piston
1. Engine oil
Chapter 04 Diagnosis- the
Engine oil mixed with fuel 2. High pressure fuel pump motor control system, engine
oil mixed with fuel
3. Fuel injector
1. Lubrication system
2. Oil pressure switch
3. Oil pressure regulator Chapter 04 Diagnosis- the
Low oil pressure motor control system, low oil
4. Oil pump pressure
5. Oil condenser
6. ECM
1. Lubrication system
2. Oil pressure switch
Chapter 04 Diagnosis- the
3. Oil pressure regulator
High oil pressure motor control system, high oil
4. Oil pump pressure
5. ECM
6. Oil condenser
1. Cooling system
Chapter 04 Diagnosis- the
Engine oil pollution 2. Lubrication system motor control system, engine
oil pollution
3. Engine oil
1. Lubrication system
2. Oil condenser
3. Crankcase ventilation
system
Chapter 04 Diagnosis- the
Excessive oil consumption 4. Turbocharger motor control system,
5. Valve oil seal Excessive oil consumption
6. Piston ring
7. Oil filter
8. Valve guide
