Mitsubishi 380. Manual — part 568

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

MULTIPORT FUEL INJECTION (MFI)

13A-364

STEP 11. Measure the power supply voltage at crankshaft
position sensor harness side connector B-119.
(1) Disconnect the connector B-119 and measure at the

harness side.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal No. 3 and ground.

• Voltage should be 4.9 - 5.1 volts.

(4) Turn the ignition switch to the "LOCK" (OFF) position.

Q: Is the measured voltage between 4.9 and 5.1volts?

YES : Go to Step 13.
NO : Go to Step 12.

AK303123

1

2

3

CRANKSHAFT

POSITION

SENSOR

AB

CRANKSHAFT

SPROCKET

CONNECTOR: B-119

B-119 (B)

HARNESS

CONNECTOR:

COMPONENT SIDE

AK303127AB

2 1

3

B-119 HARNESS

CONNECTOR:

COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

MULTIPORT FUEL INJECTION (MFI)

13A-365

STEP 12. Check harness connector B-20 at ECU for
damage.
Q: Is the harness connector in good condition?

YES : Repair harness wire between ECU connector B-20

(terminal No. 25) and crankshaft position sensor
connector B-119 (terminal No. 3) because of open
circuit or short circuit to ground. Then go to Step 18.

NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 18.

16DB400A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER

AK303123

1

2

3

CRANKSHAFT

POSITION

SENSOR

AB

CRANKSHAFT

SPROCKET

CONNECTOR: B-119

B-119 (B)

HARNESS

CONNECTOR:

COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

MULTIPORT FUEL INJECTION (MFI)

13A-366

STEP 13. Check for continuity at crankshaft position
sensor harness side connector B-119.
(1) Disconnect the connector B-119 and measure at the

harness side.

(2) Check for the continuity between terminal No. 1 and

ground.

• Should be less than 2 ohms.

Q: Does continuity exist?

YES : Go to Step 16.
NO : Go to Step 14.

AK303123

1

2

3

CRANKSHAFT

POSITION

SENSOR

AB

CRANKSHAFT

SPROCKET

CONNECTOR: B-119

B-119 (B)

HARNESS

CONNECTOR:

COMPONENT SIDE

AK303128 AB

2 1

3

B-119 HARNESS

CONNECTOR:

COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

MULTIPORT FUEL INJECTION (MFI)

13A-367

STEP 14. Check harness connector B-20 at ECU for
damage.
Q: Is the harness connector in good condition?

YES : Go to Step 15.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 18.

16DB400A

COVER

ENGINE

CONTROL

UNIT

AIR

CLEANER