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Mitsubishi Outlander XL. Manual - part 313

STEP 6. Using the oscilloscope, check the camshaft
position sensor.

ZK603389

AA00

Crankshaft position
sensor connector

Oscilloscope

MB991709

(1)

Disconnect the camshaft position sensor connector B-112,
and connect test harness special tool (MB991709) between
the separated connectors (All terminals should be
connected).

(2)

Connect the oscilloscope probe to the camshaft position
sensor side connector terminal No. 3.

NOTE:

When measuring with the ECM side connector,

disconnect all ECM connectors. Connect the check harness
special tool (MB992110) between the separated
connectors. then connector the oscilloscope probe to the
check harness connector terminal No. 14.

(3)

Start the engine and run at idle.

AA00

ZK603377

2 Engine revolutions

Normal wavefome

(4)

Check the waveform.

｠

The waveform should show a pattern similar to the
illustration.

(5)

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

Q:Is the waveform normal?

YES:

Go to Step 8.

NO:

Go to Step 7.

STEP 7. Check the camshaft position sensing cylinder.

Q:Is the camshaft position sensing cylinder in good

condition?

YES:

Replace the camshaft position sensor. Then go to

Step 8.

NO:

Repair it. Then go to Step 8.

STEP 8. Check the trouble symptoms.

(1)

Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function - OBD-II Drive Cycle - Pattern 24 P.
13B-6.

(2)

Check the diagnostic trouble code (DTC).

Q:Is DTC P0340 set?

YES:

Replace the ECM. When the ECM is replaced, register

the ID code. Refer to GROUP 42B, ID Code Registration
Judgment Table <Vehicles with KOS> P.42B-12or GROUP
42C, ID Code Registration Judgment Table <Vehicles with
WCM> P.42C-8. Then go to Step 9.

NO:

It can be assumed that this malfunction is

intermittent. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points - How to Cope
with Intermittent Malfunctions P.00-15.

STEP 9. Test the OBD-II drive cycle.

(1)

Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function - OBD-II Drive Cycle - Pattern 24 P.
13Ab-8.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-447

DIAGNOSTIC TROUBLE CODE PROCEDURES

(2)

Check the diagnostic trouble code (DTC).

Q:Is DTC P0340 set?

YES:

Retry the troubleshooting.

NO:

The inspection is complete.

DTC P0401: Exhaust Gas Recirculation Flow Insufficient Detected

M11310100227USA0000010000

TECHNICAL DESCRIPTION

｠

When the EGR valve (stepper motor) is actuated
from the fully closed position toward the open
position while the engine is running, EGR gas flows.

｠

The ECM checks how the EGR gas flow signal
changes.

DESCRIPTIONS OF MONITOR METHODS

Small manifold pressure change during exhaust
gas recirculation (EGR) operation from closed to
open.

MONITOR EXECUTION

Continuous

MONITOR EXECUTION CONDITIONS (Other
monitor and Sensor)

Other Monitor (There is no temporary DTC stored in
memory for the item monitored below)

｠

EGR stepper motor monitor

Sensor (The sensor below is determined to be
normal)

｠

Mass airflow sensor

｠

Engine coolant temperature sensor

｠

Intake air temperature sensor

｠

Barometric pressure sensor

｠

Throttle position sensor

｠

Manifold absolute pressure sensor

｠

Accelerator pedal position sensor

13Ab-448

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC SET CONDITIONS

Logic Flow Chart

Yes

AK603766

＊

: Threshold valu e

AA00

Nm = 0

Good

Malfunction

Monitoring

conditions

Nm = 3

P2 - P1 < P0 *

Nm = 0

Nm = Nm + 1

End

Measure manifold

pressure (P1)

EGR valve open

(1.0sec)

Measure manifold

pressure (P2)

Start

Check Conditions

｠

At least 20 seconds have passed since the last
monitor was complete.

｠

Engine coolant temperature is higher than 76°C
(169°F).

｠

Engine speed is at between 960 and 1,500 r/min.

｠

Intake air temperature is higher than -10°C (14°F).

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-449

DIAGNOSTIC TROUBLE CODE PROCEDURES

｠

Barometric pressure is higher than 76 kPa (22.4
in.Hg).

｠

Vehicle speed is 30 km/h (19 mph) or more.

｠

At least 90 seconds have passed since manifold
absolute pressure sensor output voltage fluctuated
1.5 volts or more.

｠

Battery positive voltage is higher than 10.3 volts.

｠

The throttle valve is closed.

｠

Volumetric efficiency is lower than 22 percent.

｠

The PCM monitors for this condition for 3 cycles of
1.8 seconds each during the drive cycle.

Judgement Criterion

｠

When the EGR valve opens to the prescribed
opening, when intake manifold pressure fluctuation
width is lower than 2.0 kPa (0.59 in.Hg).

OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-II Drive Cycle -
Pattern 3 P.13Ab-8.

TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are: )

｠

EGR valve (stepper motor) failed.

｠

Open or shorted EGR valve (stepper motor) circuit,
or connector damage.

｠

Manifold absolute pressure sensor failed.

｠

ECM failed.

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: V.C.I.

｠

MB991827: USB Cable

｠

MB991910: Main Harness A

STEP 1. Using scan tool MB991958, check data list item 8:
Manifold Absolute Pressure Sensor.

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958 to the data link connector.

(2)

Start the engine and run at idle.

(3)

Set scan tool MB991958 to the data reading mode for item
8, Manifold Absolute Pressure Sensor.

(4)

Warm up the engine to normal operating temperature: 80°C
to 95°C (176°F to 203°F).

｠

Should be between 16 - 36 kPa (4.7 - 10.6 in.Hg) at engine
idling.

(5)

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

Q:Is the sensor operating properly?

YES:

Clean the EGR valve and EGR passage. Then go to Step

NO:

Refer to DTC P0106 - Manifold Absolute Pressure

Sensor Circuit Range/Performance Problem P.13Ab-126, DTC
P0107 - Manifold Absolute Pressure Sensor Circuit Low
Input P.13Ab-132, DTC P0108 - Manifold Absolute Pressure
Sensor Circuit High Input P.13Ab-138.

STEP 2. Check the EGR system
Refer to GROUP 17, Emission Control System - Exhaust Gas
Recirculation (EGR) System - General Information P.17c-13.

13Ab-450

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

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