Mitsubishi Outlander XL. Manual — part 1245

ZK600274

Throttle actuator
control motor

Throttle actuator
control motor relay

MFI relay

To ECM

ECM

Power supply

OFF

ON

OFF

ON

AA01

From battery

IGNITION COIL

Refer to GROUP 16 - Ignition System - Ignition
Coil P.16c-2.

EXHAUST GAS RECIRCULATION (EGR) VALVE

Refer to GROUP 17 - Emission Control - Exhaust Gas
Recirculation (EGR) System P.17c-7.

EVAPORATIVE EMISSION PURGE SOLENOID

Refer to GROUP 17 - Emission Control - Evaporative Emission
Control System P.17c-5.

13A-28

MULTIPORT FUEL SYSTEM (MFI)

ACTUATOR

INTAKE MANIFOLD TUNING SOLENOID

ZK600283

Filter

A

B

To vacuum tank

To actuator

AA00

A intake manifold tuning solenoid is installed on the intake
manifold plenum. The intake manifold tuning solenoid is an ON/
OFF control type solenoid valve. When current is not passing
through the coil, nipple A is kept air-tight and air passes through
nipple B and the filter. When current is passed through the coil,
air is unable to pass through the filter and it passes through
nipple A and nipple B. ECM changes the ON/OFF of solenoid
valve according to the engine's operating conditions to change
between negative pressure in vacuum tank and atmospheric
pressure and performs the Open/Close of the vacuum actuator.

ZK600284

12

0

AA01

OFF

ON

Intake manifold
tuning solenoid

ECM

ECM terminal voltage V

Engine speed to
switch intake manifold
tuning solenoid

Engine speed r/min

From MFI relay

ENGINE OIL CONTROL VALVE

ZK600277

Plunger

Coil

Port “A”:
to oil pan

Oil
drain

Oil drain

Spring

Spool

AA00

Port “B”:
from oil
pump

Port “C”: to piston

An engine oil control valve is installed on the cylinder head. The
engine oil control valve is a duty control type solenoid valve and
is used in oil pressure control for cam change. When no current
is passing through the engine oil control valve's coil (duty: 0 %),
port B gets closed and the oil pressure path between port A and
port C connects. Oil that had been acting on the cam change
control piston is expelled from port C via port A. Thus, the low-
speed cam drives the inlet valve. When current is passed
through the coil (duty: 100 %) and the spool moves, port A gets
closed and port B and port C get connected. At this time the oil
pressure-fed from the oil pump passes from port B via port C and
acts on the cam change control piston. Thus, high-speed cam
drives the inlet valve. The ECM changes the duty ratio and
switches the cam in accordance with the engine operation.

MULTIPORT FUEL SYSTEM (MFI)

13A-29

ACTUATOR

ZK600278 AA01

Engine speed
to switch MIVEC

Low-speed mode

OFF

High-speed mode

ON

Engine speed r/min

From MFI relay

Engine oil
control valve

ECM

12

0

ECM terminal voltage V

EVAPORATIVE EMISSION VENTILATION

SOLENOID

ZK602530 AA00

To canister

Connector

Evaporative
emission
ventilation
solenoid

To filter

The evaporative emission ventilation solenoid, an ON/OFF type
solenoid valve, is integrated in the evaporative canister.The
evaporative emission ventilation solenoid is installed between
the evaporative canister and the air-releasing end, where the
evaporative emission ventilation solenoid takes or shuts off
air.When the current is not flowing through the coil, the air flows
between the nipples, "A" and "B", and through the evaporative
canister.When the current is flowing through the coil, the air is
sealed in the nipple "A" and the air through the evaporative
canister is shut off.When monitoring the evaporative leak, the
ECM turns the evaporative emission ventilation solenoid on to
create the slight vacuum condition in the evaporative emission
control system. The ECM shuts off the air flowing through the
evaporative canister to maintain the vacuum condition
necessary for monitoring.

ZK600284

12

0

AA02

OFF

ON

Evaporative emission
ventilation solenoid

ECM

ECM terminal voltage V

Engine speed to switch
evaporative emission
ventilation solenoid

Engine speed r/min

From MFI relay

13A-30

MULTIPORT FUEL SYSTEM (MFI)

ACTUATOR

GENERATOR G TERMINAL

ECM uses ON/OFF of generator G terminal to control generator
output voltage. When the power transistor in the ECM turns ON,
output voltage gets adjusted to about 12.8 V. When generator
output voltage drops to 12.8 V it becomes lower than voltage of
the charged battery and almost no current is output from the
generator. When the power transistor in the ECM turns OFF,
output voltage gets adjusted to about 14.7 V. When generator
output voltage is about 14.7 V, generator outputs current to
produce electricity. In case electric load is generated suddenly,
ECM controls generator G terminal's On-duty to limit the sudden
increase in generator load due to generation and thus prevents
change in idle speed.

ZK600279

Field coil

IC regulator

Generator

G

AA01

ECM

Ignition switch-IG

Battery

B

S

FUEL INJECTION CONTROL

M21302000030USA0000010000

Fuel injection volume is regulated to obtain the
optimum air-fuel ratio in accordance with the constant
minute changes in engine driving conditions. Fuel
injection volume is controlled by injector drive time

MULTIPORT FUEL SYSTEM (MFI)

13A-31

FUEL INJECTION CONTROL