HYOSUNG Aquila GT250 Ej, Service Manual

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4-1-23 EI SYSTEM DIAGNOSIS
EI SYSTEM TROUBLESHOOTING
CUSTOMER COMPLAINT ANALYSIS
Record details of the problem (failure, complaint) and how it occurred as described by the customer.
For this purpose, use of such an inspection form will facilitate collecting information to the point required for proper
analysis and diagnosis.
EXAMPLE : CUSTOMER PROBLEM INSPECTION FORM
User name : Model : VIN :
Date of issue : Date Reg. : Date of problem : Mileage :
“FI” Check lamp
Always ON Sometimes ON Always OFF Good condition
No code Malfunction code ( )
PROBLEM SYMPTOMS
Difficult Starting Poor Driveability
No cranking Hesitation on acceleration
No initial combustion Back fire / After fire
No combustion Lack of power
Poor starting at Surging
( cold warm always) Abnormal knocking
Other Engine rpm jumps briefly
Other
Poor Idling Engine Stall when
Poor fast Idle Immediately after start
Abnormal idling speed Throttle valve is opened
( High Low) ( rpm) Throttle valve is closed
Unstable Load is applied
Hunting ( rpm. to rpm) Other
Other
OTHERS :
Malfunction display / code
(LCD panel) or
Blinks signal
( “FI” check lamp)