Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 79

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-15

PROCEDURE 3

CATALYTIC CONVERTER MONITOR

DTC

P0421

Drive cycle
pattern

This monitor [from start to ignition switch to the "LOCK" (OFF) position] will be completed while
traveling with the following drive cycle pattern. It will take 20 minutes. You must complete this drive
twice.

NOTE: . Vehicle speed and throttle opening angle should be within the shaded range.

Inspection
conditions

•

Atmospheric temperature: -10

°

C (14

°

F) or more

•

A/C switch: OFF

•

Condition of A/T: Selector lever D range

Test procedure

Engine: start
Accelerate until the vehicle speed is 72 km/h (45 mph).
Travel for 300 seconds or more while keeping the vehicle speed at 72

−

97 km/h (45 - 60 mph). (M/T:

5th speed)

Decelerate until the vehicle speed is within 56

−

64 km/h (35

−

40 mph).

While keeping the accelerator pedal opening degree constant (M/T: 4th speed), keep the vehicle

speed at 56

−

64 km/h (35

−

40 mph) and travel for 90 seconds or more. (During monitor)

Fully close the throttle and decelerate, and keep the deceleration state for 10 seconds. Then, quickly

accelerate until the vehicle speed reaches 56

−

64 km/h (35

−

40 mph). Then, repeat steps 5 and

6, and complete six monitor sessions.

Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position.
Confirm that the diagnostic trouble code (DTC) is not output.
If DTC P0421 is output, refer to DTC P0421

−

Warm Up Catalyst Efficiency Below Threshold (Bank 1)

P.13B-274

.

AKX01347

(3)

(2)

(1)

(4)

(5)

(5)

(6)

(6)

(6)

(5)

(5)

(7)

300 SECONDS OR MORE
72 - 97 km/h (45 - 60 mph)
M/T: 5TH SPEED

PREPARATION
PERIOD

ENGINE
START

IGNITION
SWITCH:
"LOCK"
(OFF) position

1 ST
MON-
ITOR

FULL
DECEL-
ERATION

FULL
DECEL-
ERATION

FULL
DECEL-
ERATION

2 ND
MON-
ITOR

6 TH
MON-
ITOR

90 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
M/T: 4TH SPEED

97
(60)

64
(40)

32
(20)

0

100

50

0

VEHICLE
SPEED
km/h (mph)

CALCULATED
LOAD (%)

AKX01347AC

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-16

PROCEDURE 4

HEATED OXYGEN SENSOR MONITOR

DTC

P0130,P0133,P0136,P0139

Drive cycle
pattern

This monitor [from start to ignition switch to the "LOCK" (OFF) position] will be completed while
traveling with the following drive cycle pattern. It will take 5 minutes. You must complete this drive
twice.

NOTE: . Vehicle speed and throttle opening angle should be within the shaded range.

Inspection
conditions

•

Engine coolant temperature: 80

°

C (176

°

F) or more

•

Atmospheric temperature: -10

°

C (14

°

F) or more

•

Condition of A/T: Selector lever D range

Test procedure

Engine: start
Accelerate until the vehicle speed is 56

−

64 km/h (35

−

40 mph).

While keeping the accelerator pedal opening degree constant (M/T: 4th speed), keep the vehicle

speed at 56

−

64 km/h (35

−

40 mph) and travel for 120 seconds or more. (During monitor)

Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position.
Confirm that the diagnostic trouble code (DTC) is not output.
If DTC P0130 is output, refer to DTC P0130

−

O

2

Sensor Circuit Malfunction (Bank 1 Sensor 1)

P.13A-109

.

If DTC P0133 is output, refer to DTC P0133

−

O

2

Sensor Circuit Slow Response (Bank 1 Sensor

1)

P.13A-118

.

If DTC P0136 is output, refer to DTC P0136

−

O

2

Sensor Circuit Malfunction (Bank 1 Sensor 2)

P.13A-133

.

If DTC P0139 is output, refer to DTC P0139

−

O

2

Sensor Circuit Slow Response (Bank 1 Sensor

2)

P.13A-142

.

AKX01348

AKX01348

(3)

(2)

(1)

(4)

120 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
M/T: 4TH SPEED

ENGINE
START

IGNITION
SWITCH: "LOCK"
(OFF) position

DURING MONITOR

97
(60)

64
(40)

32
(20)

0

100

50

0

VEHICLE SPEED
km/h (mph)

CALCULATED
LOAD (%)

AKX01348 AC

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-17

PROCEDURE 5

EXHAUST GAS RECIRCULATION (EGR) SYSTEM MONITOR

DTC

P0401

Drive cycle
pattern

This monitor [from start to ignition switch to the "LOCK" (OFF) position] will be completed while
traveling with the following drive cycle pattern. It will take 10 minutes. You must complete this drive
twice.

NOTE: . Vehicle speed and throttle opening angle should be within the shaded range.

Inspection
conditions

•

Engine coolant temperature: 80

°

C (176

°

F) or more

•

Atmospheric temperature: 5

°

C (41

°

F) or more

•

A/C switch: OFF

•

Condition of A/T: Selector lever D range

Test procedure

Engine: start
Accelerate until the vehicle speed is 56

−

64 km/h (35

−

40 mph).

Travel for 20 seconds or more while keeping the vehicle speed at 56

−

64 km/h (35 - 40 mph). (M/T:

4th speed)

Fully close the throttle from an engine speed of 2,000

−

3,000 r/min, and while keeping the clutch

engaged, decelerate to approx. 900 r/min without applying the brakes. Do not steer the handle or
turn the light ON/OFF during this time. (During monitor)

Accelerate until the vehicle speed reaches 56

−

64 km/h (35

−

40 mph), and travel for 20 seconds or

more (M/T: 4th speed). Then, repeat steps 4 and 5 and complete 8 monitor sessions.

Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position.
Confirm that the diagnostic trouble code (DTC) is not output.
If DTC P0401 is output, refer to DTC P0401

−

Exhaust Gas Recirculation Flow Insufficient detected

P.13A-199

.

AKX01349

(2)

AKX01349

(3)

(5)

(5)

(5)

(5)

(2)

(1)

(4)

(4)

(4)

(4)

(4)

20 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
M/T: 4TH SPEED

20 SECONDS OR MORE

1 ST
MON-
ITOR

7 TH
MON-
ITOR

8 TH
MON-
ITOR

2 ND
MON-
ITOR

ENGINE START

IGNITION
SWITCH:"LOCK"
(OFF) position

FULL
DECEL-
ERATION

FULL
DECEL-
ERATION

FULL
DECEL-
ERATION

FULL
DECEL-
ERATION

FULL
DECEL-
ERATION

64
(40)

32
(20)

0

100

50

0

VEHICLE
SPEED
km/h (mph)

CALCULATED
LOAD (%)

AKX01349AC

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-18

PROCEDURE 6

OTHER MONITOR (Main components, sensors and switches, wire breakage and short circuit)

DTC

•

Main components: P0134, P0300, P0301, P0302, P0303, P0304, P0506, P0507,P1400

•

Sensors and switches: P0101,P0102,P0103, P0107, P0108,P0111, P0115,P0116,P0117,
P0121,P0122,P0123, P0335, P0340, P0551

•

Wire breakage and short circuit: P0130, P0135, P0136, P0141, P0201, P0202, P0203, P0204, P0403, P0443,
P0446, P1500

Drive cycle
pattern

This monitor [from start to ignition switch to the "LOCK" (OFF) position] will be completed while traveling with the
following drive cycle pattern. It will take 10 minutes. You must complete this drive twice.
NOTE: . Drive according to the graph below.

Inspection
conditions

•

Engine coolant temperature: 80

°

C (176

°

F) or more

•

Atmospheric temperature: 5

°

C (41

°

F) or more

•

Condition of A/T: Selector lever D range

Test procedure

Engine: start
Accelerate until the vehicle speed is 56

−

64 km/h (35

−

40 mph), and travel for 300 seconds or more. (M/T: 4th

speed)

Return the vehicle to the shop.
After stopping the vehicle, continue idling for 300 seconds, and then turn the ignition switch to the "LOCK" (OFF)

position. Moreover, the vehicle should be set to the following conditions for idling.

•

A/C switch: OFF

•

Lights and all accessories: OFF

•

Transmission: Neutral

•

Steering wheel: Straightforward position

Confirm that the diagnostic trouble code (DTC) is not output.
If a DTC is displayed, refer to Diagnostic Trouble Code Chart

P.13A-20

.

AKX01350

AKX01350

(3)

(2)

(1)

(4)

300 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
M/T: 4TH SPEED

ENGINE: IDLING
TRANSMISSION: NEUTRAL
300 SECONDS

ENGINE START

IGNITION
SWITCH:"LOCK"
(OFF) position

64
(40)

32
(20)

0

100

50

0

VEHICLE
SPEED
km/h (mph)

CALCULATED
LOAD (%)

AKX01350 AC