Mitsubishi Lancer Evolution X. Manual — part 243

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-37

PATTERN 11

.

Drive cycle
pattern

Inspection
conditions

• Engine coolant temperature: More than 7° C (45° 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 6 minutes.
3. Drive the vehicle for 30 seconds at the following conditions. (During the monitor)

• Engine speed: More than 1,200 r/min
• Engine load: More than 30 %
• Throttle position sensor output: Less than 3.3 volts
• Except fuel cut

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

AK402436

(2)

(1)

(3)

30 Seconds

Ignition
switch:
"LOCK" (OFF)

During the monitor

1,200 r/min

Engine speed

AD

Idling

(4)

6 Minutes

Time

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-38

PATTERN 12

.

PATTERN 13

.

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 50 km/h (31 mph) for 5 minutes.
3. Release the accelerator pedal for 5 seconds then stop the vehicle in a safe place.
4. Increase the speed of the vehicle to 50 km/h (31 mph) under the following conditions, and

then drive the vehicle for 1 minute.
• Engine speed: More than 1,500 r/min
• Engine load: More than 40 %

5. Release the accelerator pedal for 5 seconds then stop the vehicle in a safe place.
6. Repeat Steps 4 and 5 for 2 times.
7. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
8. Start the engine and do Steps 1 to 7 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.

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

AK900710

(2)

(1)

(3)

5 Minutes

Ignition
switch:
"LOCK" (OFF)

50 km/h
(31 mph)

Vehicle speed

AB

(4)

(5)

5 Seconds

(4)

(5)

(7)

Idling

Time

5 Seconds

1 Minute

(4)

(5)

Inspection
conditions

• Engine coolant temperature at engine start: More than −10° C (14° F), less than 36° C

(97° F)

• Difference between engine coolant temperature and intake air temperature at engine

start: Less than 5° C (9° 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 30 km/h (19 mph) until engine coolant temperature rises

more than 60° C (140° F). (During the monitor)

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.

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-39

PATTERN 14

.

Drive cycle
pattern

Inspection
conditions

• Engine coolant temperature: More than −10° C (14° F)
• Barometric pressure: More than 76 kPa (22.4 in.Hg)
• 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 3 minutes at the following conditions. (During the monitor)

• Engine speed: More than 500 r/min, less than 3,000 r/min
• Engine load: More than 25 %
• Without rapid accelerator pedal change
• Except fuel cut

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.

AK402440

(2)

(1)

(3)

3 Minutes

During the monitor

500 - 3,000 r/min

Ignition
switch:
"LOCK" (OFF)

Engine speed

AE

Time

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-40

PATTERN 15

.

PATTERN 16

.

Drive cycle
pattern

Inspection
condition

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

Test
procedure

1. Start the engine with all the accessories switched OFF.
2. Accelerate until the vehicle speed is more than 50 km/h (31 mph).
3. Stop the vehicle in a safe place and let the engine idle for 20 seconds. (During the

monitor)

4. Repeat Steps 2 and 3 for 10 times.
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.
7. Confirm that the diagnostic trouble code (DTC) is not output.

AK402438

(3)

(2)

(1)

20 seconds

1st
mon-
itor

9th
mon-
itor

10th
mon-
itor

2nd
mon-
itor

Ignition
switch:
"LOCK" (OFF)

50 km/h
(31 mph)

Vehicle speed

AC

(3)

(2)

(2)

(3)

(3)

(2)

(5)

Idling

(2)

20 seconds

Time

Drive cycle
pattern

Inspection
conditions

• Engine coolant temperature: More than 65° C (149° 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 30 seconds. (During the monitor)
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.

AK402441

(2)

(1)

(3)

30 seconds

During the monitor

50 km/h
(31 mph)

Ignition
switch:
"LOCK" (OFF)

Vehicle speed

AP

Time