Technical information

MPI – GENERAL
13A-2
MPI system diagram
Engine ECU
H 1. O
2
sensor
H 2. Air flow sensor
H 3. Intake air temp.
sensor
H 4. Throttle position
sensor
H 5. Intake Cam position
sensor
H 6. Exhaust Cam
position sensor
H 7. Crank angle
sensor
H 8. Atmospheric
pressure sensor
H 9. Water temp.
sensor
H 10. Knock sensor
H 11. Manifold absolute
pressure (MAP)
sensor
H 12. Air temp. sensor
• Power supply
• Ignition switch IG
• Ignition switch ST
• Vehicle speed
sensor
• A/C switch
• A/C load signal
• Power steering
fluid pressure switch
• Alternator FR signal
• Inter-cooler water spray
switch (auto)
•Inter-cooler water spray
switch (manual)
I1. Injector
I2. ISC servo (Stepper
motor)
I3. Fuel pressure
control solenoid valve
I4. No. 1 Waste gate
solenoid valve
I5. No. 2 Waste gate
solenoid valve
I6. Purge control
solenoid valve
I7. Secondary air
control solenoid valve
I8. Oil feeder control
valve
• Engine control relay
• Fuel pump relay 2,3
(ON/OFF)
• Fuel pump relay (HI/LO
switch)
• A/C relay
• Ignition coil
• Fan controller
• Condenser fan relay (HI)
• Condenser fan relay
(LO)
• Engine warning light
• Diagnosis output
terminal
• Alternator G terminal
• Inter-cooler water spray
relay
•Inter-cooler water spray
lamp
• O
2
sensor heater
È
È
I 6. Purge control
solenoid valve
I 7. Secondary
air control
solenoid valve
Check
valve
Secondary air
valve
To fuel
tank
H 6. Exhaust cam
position sensor
H 8. Atmospheric
pressure sensor
H 2. Air flow sensor
Intake
Waste gate actuator
I 4. No.1 waste gate
solenoid valve
H 3. Intake air
temperature
sensor
I 5. No.2 waste gate
solenoid valve
H 1. O
2
sensor
H 5. Intake cam
position sensor
Catalyst
H 7. Crank angle sensor
H 10. Knock sensor
H 9. Water temperature sensor
I 1. Injector
From fuel
pump
Fuel pressure
regulator
I 8. Oil feeder control
valve
I 3. Fuel pressure
control solenoid
valve
Vacuum
tank
I 2. ISC servo
H 11. MAP sensor
H 12. Air temperature sensor
H 4. Throttle
position
sensor
From fuel tank
Canister
By-pass valve