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Mitsubishi Evolution X. Manual - part 263

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-29

PATTERN 3

Drive cycle
pattern

Inspection
conditions

• Engine coolant temperature: More than 30° C (86° F)

• Intake air temperature: More than −10° C (14° F)

• Barometric pressure: More than 76 kPa (22.5 inHg)

• Condition of TC-SST: Shift lever "D" range

Test
procedure

1. Start the engine with all accessories switched OFF.
2. Drive the vehicle for 5 minutes at the following conditions. (During the monitor)

• Engine speed: Less than 3,500 r/min

• Airflow rate: More than 13 g/sec, less than 45 g/sec

• Accelerator pedal: Except full close

• Without rapid accelerator pedal movement

3. Release the accelerator pedal for 5 seconds.
4. Drive the vehicle for 3 minutes at the following conditions. (During the monitor)

• Engine speed: Less than 3,500 r/min

• Airflow rate: More than 13 g/sec, less than 45 g/sec

• Accelerator pedal: Except full close

• Without rapid accelerator pedal movement

NOTE: When the system is normal, the monitor is completed earlier.

5. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
6. Start the engine and do Steps 1 to 5 again.

NOTE: When the vehicle is operating normally and the OBD-II Drive Cycle is carried out,
the Readiness Codes will be set as "Complete" on the first drive cycle. The second drive
cycle is required to set the Readiness Codes as "Complete" if a fault is detected during
the first drive cycle.

7. Confirm that the diagnostic trouble code (DTC) is not output.

AK402432

(2)

(1)

(3)

5 Minutes

Ignition
switch:
"LOCK" (OFF)

During the monitor

3,500 r/min

Engine speed

(4)

(5)

3 Minutes

5 Seconds

During the monitor

Time

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-30

PATTERN 4

Drive cycle
pattern

Inspection
conditions

• Engine coolant temperature at engine start: Less than 36° C (96° F)

• Intake air temperature at engine start: Less than 36° C (96° F)

• Fuel amount at engine start: More than 15 %, less than 40 %

• Engine coolant temperature: More than 60° C (41° F)

• Intake air temperature: More than 5° C (41° F)

• Barometric pressure: More than 76 kPa (22.5 inHg)

• Fuel temperature: Less than 36° C (96° F)

• Condition of TC-SST: Shift lever "D" range

Test
procedure

1. Start the engine with all the accessories switched OFF.
2. Drive the vehicle for 16 minutes at the following conditions. (During the monitor)

• Engine speed: More than 1,600 r/min, less than 4,000 r/min

• Vehicle speed: More than 30 km/h (18.7 mph)

• Engine load: More than 20 %, less than 50 %

• Without rapid accelerator pedal movement

NOTE: Keep running as long as possible with the power steering pressure switch in

the OFF position.

NOTE: When the system is normal, the monitor is completed earlier.

3. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
4. Start the engine and do Steps 1 to 3 again.

5. Confirm that the diagnostic trouble code (DTC) is not output.

AK402430

(2)

(1)

(3)

16 Minutes

During the monitor

1,600 - 4,000 r/min

Ignition
switch:
"LOCK" (OFF)

Engine speed

Time

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-31

PATTERN 5

PATTERN 6

Inspection
conditions

• Engine coolant temperature at engine start: Less than 36° C (96° F)

• Intake air temperature at engine start: Less than 36° C (96° F)

• Fuel amount at engine start: More than 40 %, less than 85 %

• Engine coolant temperature: More than 20° C (68° F)

• Intake air temperature: More than 5° C (41° F)

• Barometric pressure: More than 76 kPa (22.5 inHg)

• Fuel temperature: Less than 32° C (90° F)

Test
procedure

1. Start the engine with all the accessories switched OFF.
2. Let the engine idle for 16 minutes. (During the monitor)

NOTE: When the system is normal, the monitor is completed earlier.

3. Turn the ignition switch to "LOCK" (OFF) position.
4. Start the engine and do Steps 1 to 3 again.

5. Confirm that the diagnostic trouble code (DTC) is not output.

Drive cycle
pattern

Inspection
conditions

• Engine coolant temperature at engine start: More than 0° C (32° F)

• Condition of TC-SST: Shift lever "D" range

Test
procedure

1. Start the engine with all the accessories switched OFF.
2. Let the engine idle for 30 seconds. (During the monitor)
3. Accelerate the vehicle for 2 seconds at the following conditions. (During the monitor)

• Engine speed: More than 2,000 r/min

• Engine load: More than 20 %

• Throttle position sensor output voltage: More than 3.5 volts

4. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
5. Start the engine and do Steps 1 to 4 again.
6. Confirm that the diagnostic trouble code (DTC) is not output.

AK402442

(2)

(1)

(3)

2 Seconds

Ignition
switch:
"LOCK" (OFF)

During the monitor

Engine speed

2,000 r/min

(4)

30 Seconds

Time

Idling

During the monitor

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-32

PATTERN 7

PATTERN 8

Drive cycle
pattern

Inspection
conditions

• Engine coolant temperature: More than 76° C (169° F)

• Condition of TC-SST: Shift lever "D" range

Test
procedure

1. Start the engine with all the accessories switched OFF.
2. Drive the vehicle at more than 50 km/h (31 mph) for 1 minute.
3. Stop the vehicle in a safe place and let the engine idle for 30 seconds.
4. Repeat Steps 2 and 3 again.
5. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
6. Confirm that the diagnostic trouble code (DTC) is not output.

AK402435

(2)

(1)

(3)

1 Minute

Ignition
switch:
"LOCK" (OFF)

50 km/h
(31 mph)

Vehicle speed

(5)

30 Seconds

Idling

(2)

(3)

1 Minute

30 Seconds

Time

Drive cycle
pattern

Inspection
conditions

• Engine coolant temperature at engine start: More than 7° C (47° F)

• Intake air temperature: Less than 60° C (140° F)

• Engine coolant temperature: More than 40° C (104° F)

• Condition of TC-SST: Shift lever "D" range

Test
procedure

1. Start the engine with all the accessories switched OFF.
2. Drive the vehicle for 6 minutes at the following condition. (During the monitor)

• Vehicle speed: More than 50 km/h (32 mph)

• Except fuel cut

3. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
4. Confirm that the diagnostic trouble code (DTC) is not output.

AK402441

(2)

(1)

(3)

6 Minutes

During the monitor

50 km/h
(32 mph)

Ignition
switch:
"LOCK" (OFF)

Vehicle speed

Time

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