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14.4 Common Trouble Shooting
Methods
14.4.1 Maintenance tools
a)
Assembly and disassembly of parts and components
of electronic control system - common disassembly
tools of automotive parts and components;
b)
Circuit and electric signal of electronic control
system - digital versatile meter (with buzzer);
c)
Fault diagnosis of electronic control system and detection of engine working condition;
Fault diagnosis tester of electronic control system (recommended);
Fault diagnosis software (PCHUD) and interface connection (used if possible);
d)
List of Fault Codes of Electronic Control System (used in case of emergency);
e)
Fuel pressure gauge, range: 0 ~ 300kPa.
14.4.2 Diagnosis tester used to display the working data flow of
engine
Diagnosis tester is used to display thee working data flow of engine, further to analyze and judge the faults of
the engine.
14.4.2.1 Step 1
a)
Engine cable harness and vacuum line may affect the system to control air flow and fuel supply;
b)
Whether oxygen sensor is installed in place may affect the system to judge the air fuel ratio;
c)
Engine fault indicator may affect the system to alarm the faults;
d)
Accumulator voltage can be used to determine whether the accumulator has sufficient electric power;
e)
he experience can be used to judge whether coolant liquid temperature sensor, intake air temperature
sensor, intake manifold absolute pressure sensor and oxygen sensor can normally display the value;
f)
Work scope of throttle valve position sensor - Whether it can fully opened or closed may affect engine
dynamic performance and some system functions.
Diagnosis tester
KS MOTORCYCLES - http://ksmotorcycles.com
