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)
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