Ei System Troubleshooting; Customer Complaint Analysis - HYOSUNG 2010 ST7 Service Manual

4-19 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 :
Date of issue :
"FI" Check lamp
Malfunction display / code
(LCD panel) or
Blinks signal
( "FI" check lamp)
Difficult Starting
No cranking
No initial combustion
No combustion
Poor starting at
( cold warm
Other
Poor Idling
Poor fast Idle
Abnormal idling speed
( High
Unstable
Hunting ( rpm. to
Other
OTHERS :
Model :
Date Reg. :
Always ON
No code
PROBLEM SYMPTOMS
always)
Low) ( rpm)
rpm)
VIN :
Date of problem :
Sometimes ON
Malfunction code (
Poor Driveability
Hesitation on acceleration
Back fire /
Lack of power
Surging
Abnormal knocking
Engine rpm jumps briefly
Other
Engine Stall when
Immediately after start
Throttle valve is opened
Throttle valve is closed
Load is applied
Other
Mileage :
Always OFF Good condition
)
After fire