Symptoms
Suspected Fault Items
Relevant Sections
12. Crankshaft Position Sensor
13. Excessive Engine Oil in Combustion
Chamber or Valve Seals Leakage
"Engine Mechanical System" in the
14. Cylinder Compression Pressure
Incorrect
15. Valve Stagnant, Valve Spring
Broken, Valve Timing Incorrect
16. Excessive Carbon Residue in
Combustion Chamber
17. Intelligent Variable Valve Timing
System
18. Exhaust Not Smooth: Three-way
Catalytic Converter Plug, Muffler Internal
Damage
"Engine Exhaust System" in the
Pinging, Knocking
Fault Definition: The knocking
sound increases during
acceleration. With the throttle
opening changes, the engine
will produce a sharp metal
knocking sound.
1. ECM Power Supply Circuit
2. Wrong Fuel Used
"Fuel System" in the
.
3. Fuel Pressure Abnormal
4. Injector Working Abnormal
5. The Air-Fuel Mixture Too Lean
6. Knock Sensor (KS) System Ignition
Advance Too Great
"Ignition System" in the
.
7. Spark Plug Thermal Value Incorrect
8. Engine Cooling System: Engine
coolant level is too low. The engine
coolant is not the correct type. The
engine coolant leaks. The cooling fan is
not running.
"Engine Cooling System" in the
9. Excessive Engine Oil in Combustion
Chamber and Valve Seal Leakage
"Engine Mechanical System" in the
10. Cylinder Compression Pressure Too
High
11. Excessive Carbon Residue in
Combustion Chamber
12. Camshaft, Cylinder Head, Piston,
Connecting Rod and Bearing Abnormal
Engine
Control System JL4G18-D
2-43
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
Page 4: ......
Page 330: ...Next Step 10 End 2 248 Fuel System JL4G18 D Engine EC718 EC718RV EC715 EC715RV 10 2009 ...
Page 1164: ......
Page 2008: ......