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FI
SYSTEM
DIAGNOSIS
4-21
FI 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:
IMileage:
Malfunction indicator
o Always ON
o Sometimes ON o Always OFF o Good condition
lamp condition (LED)
Malfunction display/code User mode: 0 No display
o Malfunction display ( )
(LCD)
Dealer mode: D No code
o Malfunction code ( )
PROBLEM SYMPTOMS
o
Difficult
Starting
o
Poor
Driveability
o No cranking
D Hesitation on acceleration
D No initial combustion
o Back fire/D After fire
D No combustion
o Lack of power
o Poor starting at D Surging
(0
cold o warm o always)
o Abnormal knocking
o Other
D Engine rpm jumps briefly
o Other
o
Poor
Idling
o Engine Stall
when
o Poor fast Idle
D Immediately after start
D Abnormal idling speed
o Throttle valve is opened
(0
High o Low) ( r/min)
o Throttle valve is closed
o Unstable
D Load is applied
D Hunting (
r/min. to
r/min)
o Other
o Other
o OTHERS: