Mitsubishi Eclipse. Manual — part 369

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-19

.

PROCEDURE 4

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HEATED OXYGEN SENSOR MONITOR
DTC

P0133, P0139, P0153, P0159

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 the "LOCK" (OFF) position.
Confirm that the diagnostic trouble code (DTC) is not output.
If DTC P0133 is output, refer to DTC P0133

− Heated Oxygen Sensor Circuit Slow

Response (Bank 1 Sensor 1)

P.13B-248

.

If DTC P0139 is output, refer to DTC P0139

− Heated Oxygen Sensor Circuit Slow

Response (Bank 1 Sensor 2)

P.13B-311

.

If DTC P0153 is output, refer to DTC P0153

− Heated Oxygen Sensor Circuit Slow

Response (Bank 2 Sensor 1)

P.13B-364

.

If DTC P0159 is output, refer to DTC P0159

− Heated Oxygen Sensor Circuit Slow

Response (Bank 2 Sensor 2)

P.13B-426

.

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 AE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-20

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 shadedrange.

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

1. Engine: start
2. Accelerate until the vehicle speed is 56

− 64 km/h (35 − 40 mph).

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

− 64 km/h (35 − 40

mph). (M/T = 4th speed)

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

− 3,000 r/min, and 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)

5. Accelerate until the vehicle speed reaches 56

− 64 km/h (35 − 40 mph), and travel for 20

seconds or more. Then, repeat steps 4 and 5 and complete 8 monitor sessions.

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

− Exhaust Gas Recirculation Flow Insufficient

detected

P.13B-601

.

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 (%)

AKX01349AE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-21

PROCEDURE 6

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

• Main components: P0106, P0107, P0108, P0134, P0154, P0300, P0301, P0302, P0303,

P0304, P0305, P0306, P0506, P0507

• Sensors and switches: P0101, P0102, P0111, P0112, P0113, P0116, P0117, P0118,

P0121, P0122, P0123, P0125, P0181, P0182, P0183, P0325, P0335, P0340, P0461

• Wire breakage and short circuit: P0130, P0131, P0132, P0135, P0136, P0137, P0138,

P0141, P0150, P0151, P0152, P0155, P0156, P0157, P0158, P0161, P0201, P0202,
P0203, P0204, P0205, P0206, P0403, P0443, P0446, P2227, P2228, P2229

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

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 AE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-22

SYSTEM READINESS TEST STATUS

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Purpose
The Readiness function also referred as I/M Readi-
ness or I/M Flags indicate if a full diagnostic check
has been "Completed" (is "Ready") for each
non-continuous monitor. Enhanced I/M State Emis-
sion Programs will use the Readiness status (Codes)
to see if the vehicle is ready for OBD II testing.
"Incomplete" (Not Ready) codes will be one of the
triggers for I/M failure.

.

Overview
The engine control module (ECM) <M/T> or
powertrain control module (PCM) <A/T> monitors the
following main diagnosis items and records whether
the evaluation was completed or is incomplete. The
Readiness codes were established for the I/M pro-
grams, thereby confirming that the vehicle was not
tampered with by erasing the DTC's before I/M test-
ing. The Readiness and DTC codes can be reset by
disconnecting the battery or by erasing the codes
with a scan tool. For this reason all Readiness codes
must read "Complete" before I/M testing. When the
monitors run and complete, MB991958 (MUT-III Sub
Assembly) will record the Readiness Code as "Com-
plete" (General Scan Tools record as "Ready"). If the
monitor did not run completely, the system then
reads as "Incomplete" (General Scan Tools record as
"Not Ready").

When the monitors run and complete, MB991958
(MUT-III) will record the Readiness Code as "Com-
plete" (General Scan Tools record as "Ready"). If the
monitor did not run completely, the system then
reads as "Incomplete" (General Scan Tools record as
"Not Ready"). When the vehicle is operating normally
and the OBD II Drive Cycle is carried out, Readiness
Code will set as "Complete" on the first drive cycle. If
during the first drive cycle a fault is detected then, a
second drive is required before the Readiness Code
will "Complete". If the fault is still there, then a DTC
will set.

• Catalyst: P0421, P0431

• Evaporative system: P0441, P0442, P0455,

P0456

• Heated oxygen sensor: P0130, P0131, P0132,

P0133, P0134, P0136, P0137, P0138, P0139,
P0150, P0151, P0152, P0153, P0154, P0156,
P0157, P0158, P0159

• Heated oxygen sensor heater: P0135, P0141,

P0155, P0161

• EGR system: P0401

After the Readiness is "Complete", the technician is
assured that any DTC's associated with that monitor
will be displayed if the system has a problem. That is
why some State's I/M programs require the Readi-
ness Code as "Complete" before they check for
DTC's.
NOTE: After a repair is mode for a DTC the techni-
cian should drive the OBD II drive cycle checking
that MB991958 (MUT-III) records all Readiness as
"Complete".

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

• Transaxle: P range

• 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.13B-23

.

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