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14. DOWNTOWN 125 i FUEL SYSTEM (Auto Control Fuel Injection System)
DOWNTOWN 125 i
SF Customer Eng.Num
Date of Date of
Mileage
production repair
Reason of repair: maintenance breakdown
Item Date Reference Memo
ECU No LFA7
ECU Version DTC
Hardware Ver
Software Ver
Calibration Ver
Model Name
Active
Occurred
History
Air Temp.(°C) environ.temp 2 °C
(Cool Engine) EngineStop
Engine Temp.(Coiling) environ.temp 2 °C
The ambient pressure drop about 12 kpa at the altitude
Atom. Pressure(Kpa) 101.3 3 kPa
every 1000m raised
Throttle Position(%) 0° / 90° : 94%(3.77V)
Throttle Position (V) 0.23V 0.05 / >3.27VIDLE/Throttle fully
TPIIdleMean (V) 0.230.05 IDLE/Throttle fully
Battery Volt (V) >12 V
Idle speed setpoint (rpm) --- 3.7 ~ 4.4V()
ISCAdapMean (°) ---
Cut Out switch volt (V) 0.4 ~ 1.44 V 3.7 ~ 4.7 V(Over 65°)
Accumulated eng. run time (hr) ---
EngineSpeed IDLE(rpm) 1850 100 rpm 80~90°C
MAPSample (kPa) 48 ~ 60 kpa 80~90°C
(Hot Engine) BeforeRepair
Injection duration (ms) 1.6 ~ 2.7 ms 80~90°C
Ign. Advance (°) 3 ~ 20 BTDC 80~90°C
Ign.Dwell duration (ms) 1.9 ~ 2.6 ms
Air Temp.(°C) environ.temp 2 °C
Engine Temp. (°C) >80 °C
O2 sensor voltage (V) 0~1V
O2 sensor heater (Yes/no) YES
O2 sensor correct 20%
IDLE CO(% ) 0.4 ~ 1.2 % Engine warm up to 80~90 °C
>140 ° The scooter with exchang engine oil and clean throttly body
ABVAngDurMech (°) 140 ° >180 ° The scooter must clean throttly body
EngineSpeed IDLE(rpm) 1850 100 rpm 80~90°C
MAPSample (kPa) 48 ~ 60 kpa 80~90°C
(Hot Engine) AfterRepair
Injection duration (ms) 1.6 ~ 2.7 ms 80~90°C
Ign. Advance (°) 3 ~ 20 BTDC 80~90°C
Ign.Dwell duration (ms) 1.9 ~ 2.6 ms Battery Volt (V)14V-1.9~2.1ms,12V-2.5~2.6ms
Air Temp.(°C) environ.temp 2 °C
Engine Temp. (°C) >80 °C
O2 sensor voltage (V) 0~1V
O2 sensor heater (Yes/no) YES
O2 sensor correct 20%
IDLE CO(% ) 0.4 ~ 1.2 % Engine warm up to 80~90 °C
>140 ° The scooter with exchang engine oil and clean throttly body
ABVAngDurMech (°) 140 °
>180 ° The scooter must clean throttly body
Repair description Repair Process
Report ID= Report Version : DEC/11/2008
14-18