Engine General Information and Diagnosis: 1A-20
FI System Troubleshooting
B831G21104008
Customer Complaint Analysis
Record details of the problem (failure, complaint) and how it occurred as described by the customer. For this purpose,
use of an inspection form such as below will facilitate collecting information required for proper analysis and diagnosis.
EXAMPLE: CUSTOMER PROBLEM INSPECTION FORM
User name: Model: VIN:
Date of issue: Date Reg.: Date of problem: Mileage:
Malfunction indicator
light condition (LED)
Always ON / Sometimes ON / Always OFF / Good condition
Malfunction display/code
(LCD)
User mode: No display / Malfunction display ( )
Dealer mode: 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) ( r/min) Throttle valve is closed
Unstable Load is applied
Hunting ( r/min to r/min) Other
Other
OTHERS:
VEHICLE/ENVIRONMENTAL CONDITION WHEN PROBLEM OCCURS
Environmental condition
Weather
Temperature
Frequency
Fair / Cloudy / Rain / Sno
w
/ Always / Other
Hot / Warm / Cool / Cold ( °C / °F) / Always
Always / Sometimes (times / day, month) / Only once
Under certain condition
Road Mountainous ( Uphill / Downhill) / Gravel / Other
Vehicle condition
Engine condition Cold / Warming up phase / Warmed up / Always / Other at starting
Immediately after start / Racing without load / Engine speed ( r/min)
Vehicle condition During driving: Constant speed / Accelerating / Decelerating
Right hand corner / Left hand corner
At stop / Vehicle speed when problem occurs ( km/h, mile/h)
Other:
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