Mitsubishi Space Star. Manual - part 48

GDI  – 

Troubleshooting

13A-119

INJECTORS AND INJECTOR OPEN CIRCUIT CHECK
SIGNAL

The measurement method has been changed from the previous
description.
Measurement Method

<Vehicles with M/T>

1.

Connect the analyzer special patterns pickup to terminal
1 (No. 1 injector) of the engine-ECU connector.

2.

Connect the analyzer special patterns pickup to terminal
96 (injector open circuit check signal) of the engine-ECU
connector.

3.

After checking terminal 1, check terminal 9 (No. 2 injector),
terminal 24 (No. 3 injector) and terminal 2 (No. 4 injector).

<Vehicles with A/T>

1.

Connect the analyzer special patterns pickup to terminal
1 (No. 1 injector) of the engine-A/T-ECU connector.

2.

Connect the analyzer special patterns pickup to terminal
63 (injector open circuit check signal) of the
engine-A/T-ECU connector.

3.

After checking terminal 1, check terminal 9 (No. 2 injector),
terminal 24 (No. 3 injector) and terminal 2 (No. 4 injector).

IGNITION COIL AND POWER TRANSISTOR
(Power transistor control signal)

The followings have been changed from the previous
description.

Alternate Method (Test harness not available)

<Vehicles with M/T>

Connect the analyzer special patterns pickup to engine-ECU
terminal 3 (No. 1 ignition coil), terminal 13 (No. 2 ignition
coil), terminal 12 (No. 3 ignition coil) and terminal 4 (No. 4
ignition coil) respectively.

<Vehicles with A/T>

Connect the analyzer special patterns pickup to
engine-A/T-ECU terminal 11 (No. 1 ignition coil), terminal 12
(No. 2 ignition coil), terminal 31 (No. 3 ignition coil) and terminal
30 (No. 4 ignition coil) respectively.

Special patterns
pickup

Analyzer

Special patterns
pickup

Analyzer

GDI  – 

Troubleshooting

13A-120

EGR VALVE (STEPPER MOTOR)

The followings have been changed from the previous
description.

Alternate Method (Test harness not available)

<Vehicles with M/T>

Connect the analyzer special patterns pickup to engine-ECU
terminal 34, connection terminal 32, connection terminal 6,
and connection terminal 5 respectively.

<Vehicles with A/T>

Connect the analyzer special patterns pickup to
engine-A/T-ECU terminal 51, connection terminal 60,
connection terminal 53, and connection terminal 62
respectively.

GDI  – 

On-vehicle Service

GDI  – 

On-vehicle Service

13A-121

ON-VEHICLE SERVICE

Caution
(1) Never attempt to tamper the fixed SAS. The fixed SAS

is precisely adjusted at factory.

(2) Should it be tampered, the full closed position of the

throttle valve will be changed. This causes the
engine-ECU <M/T> or engine-A/T-ECU <A/T> to learn
a wrong position of the throttle valve.

ACCELERATOR PEDAL POSITION SENSOR
ADJUSTMENT

Caution
(1) Never attempt to tamper the accelerator pedal position

sensor. The sensor position is precisely adjusted at
factory.

(2) Should it be tampered, follow the procedure below:

1.

Remove the accelerator pedal complete.

2.

Connect the MUT-

II

 to the diagnosis connector.

3.

Loosen the accelerator pedal position sensor attaching
bolts to allow it to be loosely fitted.

4.

Ensure that the accelerator pedal arm contacts the full-stop
position stopper.

5.

Turn the ignition switch to the ON position (but do not
start the engine).

6.

Rotate the accelerator pedal position sensor to adjust
sensor output voltage to the standard value.

Standard value: 0.985 – 1.085 V

7.

Tighten the sensor mounting bolts securely.

8.

Install the accelerator pedal complete.

Fixed SAS

Equipment side
connector

Accelerator pedal
position sensor

Accelerator pedal arm

Accelerator
pedal position
sensor

Stopper
(full stop
position)

Accelerator
pedal arm

GDI  – 

On-vehicle Service

GDI  – 

On-vehicle Service

13A-122

FUEL PRESSURE TEST

MEASUREMENT OF FUEL LOW PRESSURE BETWEEN
FUEL PUMP (LOW PRESSURE) AND FUEL PUMP
(HIGH PRESSURE)

1.

Release residual pressure from the fuel pipe line to prevent
fuel gush out.

NOTE
Refer to SPACE STAR ’99 Workshop Manual (Pub. No.
CMXE99E1)  GROUP 13A – On-vehicle Service.

2.

Disconnect the high-pressure fuel hose at the fuel pump
(high pressure) side.

Caution
Cover the hose connection with rags to prevent splash
of fuel that could be caused by some residual pressure
in the fuel pipe line.

3.

Remove the union joint and bolt from the special tool
(adapter hose) and instead attach the special tool (hose
adapter) to the adapter hose.

4.

Install the special tool (for measuring the fuel pressure)
that was set up in step 3.

<When using the fuel pressure gauge set (special tool)>
(1) Install the special tool (for measuring the fuel pressure)

between the high-pressure fuel hose and the fuel pump
(high pressure).

(2) Install the fuel pressure gauge set (special tool) on

the special tool (for measuring the fuel pressure)
putting the gasket between them.

(3) Connect the lead wire of the fuel pressure gauge set

(special tool) to the power supply (cigarette lighter
socket) and to the MUT-

II

.

<When using the fuel pressure gauge>
(1) Install the fuel pressure gauge on the special tool

(for measuring the fuel pressure) putting a suitable
O-ring or gasket between them.

(2) Install the special tool which was set up in step (1)

between the high-pressure fuel hose and the fuel pump
(high pressure).

High-pressure fuel hose

MD998709

MD998742

Fuel
pump
(high
pressure)

Gasket

High-pressure
fuel hose

MB991637

Fuel pressure gauge

O-ring or gasket

MD998709

MD998742

High-pressure
fuel hose

Fuel pump
(high 
pressure)