Fuel Injection System; Ecu Fuel Feed System - TOHATSU MFS25 Service Manual

Service Data

2.Fuel Injection System

1) ECU Fuel Feed System

ECU uses various sensors to precisely control injected fuel amount and ignition timing.
Alternator
Exciter Coils
Alternator
ECU Charge Coil
Pulser Coils
MAP ( Manifold Pressure )
Sensor
Water Temperature Sensor
Throttle Position
Sensor
MAT (Manifold Temperature)
Sensor
Oil Pressure Switch
Stop Switch
e
r
1
Fuel
Fuel Tank 1
Vapor Separator 5
Fuel Regulator q
High Pressure Fuel Filter 8
Orifice w
2-4
ECU
(Electronic
Control Unit)
q
w
5
6
3
2
Air
Fuel Connector 2
Fuel Feed Pump (FFP) 6
Air Vent e
Fuel
Control
Idle
Air Control
Ignition
Timing
Control
Display
Control
7
4
8
Fuel Filter 3
Fuel Cooler 7
Fuel Rail 9
Fuel Feed Pump
(FFP)
Fuel Injector
ISC (Idle Speed
Control) Valve
Ignition Coil
Warning Buzzer
Lamp (LED)
Tachometer
9
0
Fuel Pump 4
Fuel Injector 0
Intake Manifold
Bottom Cowl r
Open to Air
25/30 2006