Geely CK Series 2007 Workshop Manual page 83

11. General engine fault symptom and faulty area (Table 7)
Table 7
Suspect
Area
Intake abosolute pressure
sensor
Water temperature sensor
Control
Revolution speed sensor
system
Throttle valve position
sensor
Vehicle speed sensor
Fuel pump system
Fuel
Fuel pressure regulator
system
Fuel filter and pipeline
Injector
Starter signal
Ignition coil
Ignition
Spark plug
system
High pressure cable
Ignition timing
Igniter in the ECU
Throttle valve
Intake
air
Throttle valve body
system
Air leakage in the intake
air system
Air valve
ECU power supply circuit
Power
supply
Ignition swtich
system
Main relay
Fuel pump relay
76
Difficult to start
Symptom
Poor idling Engine off
Poor driving