Sym Citycom 300i - Fuel Injection System

4. Fuel Injection System
4-1
Fuel Injection System Components „„„„„„„4-1
Fuel Injection System Configuration „„„„„ 4-2
Operation of Fuel Injection System„„„„„„„„ 4-3
Fuel Injection System Introduction „„„„„„„„4-4
Fuel System Outline „„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 4-5
Ignition System Outline„„„„„„„„„„„„„„„„„„„„„„„„„„„ 4-6
Sensors and Drives Outline „„„„„„„„„„„„„„„„„„„„ 4-7
Precautions in Operation „„„„„„„„„„„„„„„„„„„„„„„„ 4-14
Fuel injection System Components
Description„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 4-15
Fuel Injection System Circuit„„„„„„„„„„„„„„„„„„ 4-31
ECU Pin Configuration „„„„„„„„„„„„„„„„„„„„„„„„„„„„ 4-32
Fault Diagnosis „„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 4-33
Integrated Fault Diagnosis Program„ 4-37
Air Cleaner „„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 4-40
Fault Diagnosis Note„„„„„„„„„„„„„„„„„„„„„„„„„„ 4-41
Warning Lamp Fault Codes Differentiation
„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 4-42
Fault Codes and Sensors Table„„„„„„„„ 4-43
Fault Code and Warning Lamp Flashing
Identification Table „„„„„„„„„„„„„„„„„„„„„„„„„„„„ 4-44
EFI Diagnostic Scanner - V70„„„„„„„„„„„„ 4-45
Diagnostic Scanner Use Note „„„„„„„„„„„ 4-46
Troubleshooting Table„„„„„„„„„„„„„„„„„„„„„„„ 4-58
Comprehensive Maintenance List „„„„ 4-59
Fuel Injection System Components
4
ISC
(Stepper motor)
TW
Sensor
MAP Sensor
Injector
TPS
TA Sensor
Fuel
Pump
Roll Over Sensor
Battery
ECU
Ignition Coil
AISV
Diagnostic Scanner
Check Light
Power Relay
CPS
O
2
Sensor
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