Geely EC718 2009 Workshop Manual page 126

2-44 Control System JL4G18-D
Symptoms
Retardation, Engine Speed
Decrease, Engine Speed
Instable
Fault Definition: When
pressing the accelerator pedal,
there is no immediate
response. This fault may occur
at any vehicle speed. The
vehicles first starts (for
example, after stopping off
hours), this fault is usually
more pronounced. In severe
cases, this fault may lead to
engine stall.
Lack of Fuel Supply, Misfire
Fault Definition: After the
engine speed increases, there
is continuous pulsation, or
jitter, usually even more
noticeable with the engine load
increases. When the engine
speed is above 1,500 rpm, the
fault does not appear.
EC718/EC718RV EC715/EC715RV 10/2009
Suspected Fault Items
1. ECM Power Supply Circuit
2. Intake Manifold Absolute Pressure
(MAP) Sensor
3. Fuel Pressure Abnormal
4. Injector Working Abnormal
5. The Air-Fuel Mixture Too Rich
6. The Air-Fuel Mixture Too Lean
7. Ignition System: Spark Plug
Abnormal, Ignition Wire Abnormal
8. Knock Sensor (KS) System Ignition
Delay Too Great
9. Crankshaft Position Sensor
10. Thermostat Abnormal
11. Generators Working Abnormal
1. ECM Power Supply Circuit
2. Air Cleaner Filter Blocked
3. Fuel Pressure Abnormal
4. Injector Working Abnormal
5. Idle Air Control Valve
6. The Air-Fuel Mixture Too Rich or Too
Lean
7. Knock Sensor (KS) System Ignition
Delay Too Great
8. Spark Plug: Thermal Value Incorrect,
damp, Crack, Gap Incorrect, Excessive
Erosion, Excessive Carbon Residue,
Contaminated by Fuel
9. Spark Plug Wire Damage
10. Ignition Coil Damage
11. Crankshaft Position Sensor
12. Excessive Engine Oil in Combustion
Chamber or Valve Seals Leakage
Relevant Sections
This section2.2.7.37 DTC P0560 P0562
This section2.2.7.17 DTC P0105 P0106 P0107
"Fuel System" in the2.3.7 Diagnostic Information and
Procedures.
This section2.2.7.21 DTC P0130 P0131 P0132 P0133
P0134 P2195 P2196.
"Ignition System" in the2.10.7 Diagnostic Information
and Procedures.
This section2.2.7.29 DTC P0321
"Engine Cooling System" in
Information and Procedures.
"Starting/Charging System" in
Information and Procedures.
This section2.2.7.37 DTC P0560 P0562
---
"Fuel System" in the2.3.7 Diagnostic Information and
Procedures.
This section2.2.8.1 Idle Air Control Valve
Replacement.
This section2.2.7.21 DTC P0130 P0131 P0132 P0133
P0134 P2195 P2196.
"Ignition System" in the2.10.7 Diagnostic Information
and Procedures.
This section2.2.7.29 DTC P0321
"Engine Mechanical System" in
Information and Procedures.
Engine
P0563.
P0108.
P0322.
the2.8.7 Diagnostic
the2.11.7 Diagnostic
P0563.
P0322.
the2.6.7 Diagnostic