Mitsubishi Eclipse. Manual — part 366
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-7
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TROUBLESHOOTING STRATEGY
M1131150000524
NOTE: If a DTC is erased, its "freeze frame" data will
be also erased and the system readiness test status
will be reset. Store the "freeze frame" data before
erasing the DTC.
Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure to have
exhausted most of the possible ways to find an MFI
fault.
1. Gather as much information as possible about the
complaint from the customer.
2. Verify that the condition described by the
customer exists.
3. Check the vehicle for any MFI Diagnostic Trouble
Code (DTC).
4. If you cannot verify the condition and there are no
DTCs, the malfunction is intermittent. For
information on how to cope with intermittent
malfunctions, refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
− How
to cope with Intermittent Malfunction
5. If you can verify the condition but there are no
DTCs, or the system cannot communicate with
the scan tool, refer to the trouble symptom
classification table.
6. If there is a DTC, record the number of the code,
then erase the code from the memory using the
scan tool.
7. Reconfirm the malfunction symptom and carry out
a test drive with the drive cycle pattern.
8. If DTC is set again, carry out an inspection with
the inspection procedure for diagnostic trouble
codes of that code.
9. If DTC is not set again, the malfunction is
intermittent. For information on how to cope with
intermittent malfunctions, refer to GROUP 00,
How to Use Troubleshooting/Inspection Service
Points
− How to cope with Intermittent Malfunction
10.After repairs are completed, conduct a road test
duplicating the complaint set conditions to confirm
the malfunction has been connected.
NOTE: If the engine control module (ECM) <M/T> or
powertrain control module (PCM) <A/T> is replaced,
Immobilizer Encrypted Code Registration should be
carried out. Refer to GROUP 54A, Ignition Switch
−
On-vehicle Service
−
Immobilizer Encrypted Code
Registration
DIAGNOSTIC FUNCTION
M1131155500171
.
MALFUNCTION INDICATOR LAMP (SERVICE ENGINE
SOON OR CHECK ENGINE LAMP)
Among the on-board diagnostic items, a Malfunction Indicator
Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illu-
minates to notify the driver of an emission control malfunction.
However, when an irregular signal returns to normal and the
powertrain control module judges that it has returned to normal,
the Malfunction Indicator Lamp (SERVICE ENGINE SOON or
Check Engine Lamp) is switched off.
Moreover, when the ignition switch is turned off, the lamp is
switched off. Even if the ignition switch is turned on again, the
lamp does not illuminate until the malfunction is detected.
Immediately after the ignition switch is turned on, the Malfunc-
tion Indicator Lamp (SERVICE ENGINE SOON or Check
Engine Lamp) is lit for 20 seconds to indicate that the Malfunc-
tion Indicator Lamp (SERVICE ENGINE SOON or Check
Engine Lamp) operates normally.
.
AK000054
AB
MALFUNCTION INDICATOR LAMP
(SERVICE ENGINE SOON OR
CHECK ENGINE LAMP)
AD
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-8
Items Indicated by the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp)
DTC NO.
ITEMS
-
Engine control module (ECM) <M/T> or Powertrain control module (PCM) <A/T> malfunction
P0101*
Volume airflow circuit range/performance problem
P0102*
Volume airflow circuit low input
P0106
Manifold absolute pressure circuit range/performance problem
P0107
Manifold absolute pressure circuit low input
P0108
Manifold absolute pressure circuit high input
P0111*
Intake air temperature circuit range/performance problem
P0112*
Intake air temperature circuit low input
P0113*
Intake air temperature circuit high input
P0116*
Engine coolant temperature circuit range/performance problem
P0117*
Engine coolant temperature circuit low input
P0118*
Engine coolant temperature circuit high input
P0121*
Throttle position sensor circuit range/performance problem
P0122*
Throttle position sensor circuit low input
P0123*
Throttle position sensor circuit high input
P0125*
Insufficient coolant temperature for closed loop fuel control
P0128
Coolant thermostat (Coolant temperature below thermostat regulating temperature)
P0130
Heated oxygen sensor circuit (bank 1 sensor 1)
P0131
Heated oxygen sensor circuit low voltage (bank 1 sensor 1)
P0132
Heated oxygen sensor circuit high voltage (bank 1 sensor 1)
P0133
Heated oxygen sensor circuit slow response (bank 1 sensor 1)
P0134*
Heated oxygen sensor circuit no activity detected (bank 1 sensor 1)
P0135
Heated oxygen sensor heater circuit (bank 1 sensor 1)
P0136
Heated oxygen sensor circuit (bank 1 sensor 2)
P0137
Heated oxygen sensor circuit low voltage (bank 1 sensor 2)
P0138
Heated oxygen sensor circuit high voltage (bank 1 sensor 2)
P0139
Heated oxygen sensor circuit slow response (bank 1 sensor 2)
P0141
Heated oxygen sensor heater circuit (bank 1 sensor 2)
P0150
Heated oxygen sensor circuit (bank 2 sensor 1)
P0151
Heated oxygen sensor circuit low voltage (bank 2 sensor 1)
P0152
Heated oxygen sensor circuit high voltage (bank 2 sensor 1)
P0153
Heated oxygen sensor circuit slow response (bank 2 sensor 1)
P0154*
Heated oxygen sensor circuit no activity detected (bank 2 sensor 1)
P0155
Heated oxygen sensor heater circuit (bank 2 sensor 1)
P0156
Heated oxygen sensor circuit (bank 2 sensor 2)
P0157
Heated oxygen sensor circuit low voltage (bank 2 sensor 2)
P0158
Heated oxygen sensor circuit high voltage (bank 2 sensor 2)
P0159
Heated oxygen sensor circuit slow response (bank 2 sensor 2)
P0161
Heated oxygen sensor heater circuit (bank 2 sensor 2)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-9
P0171
System too lean (bank 1)
P0172
System too rich (bank 1)
P0174
System too lean (bank 2)
P0175
System too rich (bank 2)
P0181
Fuel tank temperature sensor circuit range/performance
P0182
Fuel tank temperature sensor circuit low input
P0183
Fuel tank temperature sensor circuit high input
P0201
Injector circuit
− cylinder 1
P0202
Injector circuit
− cylinder 2
P0203
Injector circuit
− cylinder 3
P0204
Injector circuit
− cylinder 4
P0205
Injector circuit
− cylinder 5
P0206
Injector circuit
− cylinder 6
P0300
Random/multiple cylinder misfire detected
P0301
Cylinder 1 misfire detected
P0302
Cylinder 2 misfire detected
P0303
Cylinder 3 misfire detected
P0304
Cylinder 4 misfire detected
P0305
Cylinder 5 misfire detected
P0306
Cylinder 6 misfire detected
P0335*
Crankshaft position sensor circuit
P0340*
Camshaft position sensor circuit
P0401
EGR flow insufficient detected
P0403
EGR control circuit
P0421
Warm up catalyst efficiency below threshold (bank 1)
P0431
Warm up catalyst efficiency below threshold (bank 2)
P0441
Evaporative emission control system incorrect purge flow
P0442
Evaporative emission control system leak detected (Small leak)
P0443
Evaporative emission control system purge control valve circuit
P0446
Evaporative emission control system vent control circuit
P0451
Evaporative emission control system pressure sensor range/performance
P0452
Evaporative emission control system pressure sensor low input
P0453
Evaporative emission control system pressure sensor high input
P0455
Evaporative emission control system leak detected (Gross leak)
P0456
Evaporative emission control system leak detected (Very small leak)
P0461
Fuel level sensor circuit range/performance
P0500*
Vehicle speed sensor malfunction <M/T>
P0506
Idle control system RPM lower than expected
P0507
Idle control system RPM higher than expected
P0513
Immobilizer malfunction
DTC NO.
ITEMS
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-10
NOTE: If the Malfunction Indicator Lamp (SERVIVE ENGINE SOON or Check Engine Lamp) illuminates
because of a malfunction of the engine control module (ECM) <M/T> or powertrain control module (PCM)
<A/T>, communication between MB991958 (MUT-III) and the ECM <M/T> or PCM <A/T> is impossible. In
this case, the diagnostic trouble code cannot be read.
NOTE: After the ECM <M/T> or PCM <A/T> has detected a malfunction, the Malfunction Indicator Lamp
(SERVIVE ENGINE SOON or Check Engine Lamp) illuminates when the engine is next turned on and the
same malfunction is re-detected. However, for items marked with a "*" in the DTC NO. colum, the Service
Engine Soon/Malfunction Indicator Lamp illuminates on the first detection of the malfunction.
NOTE: After the Malfunction Indicator Lamp (SERVIVE ENGINE SOON or Check Engine Lamp) illuminates,
it will be switched off under the following conditions.
.
•
When the ECM <M/T> or PCM <A/T> monitored the power train malfunction three times* and met set
condition requirements, it detected no malfunction. *: In this case, "one time" indicates from engine start to
stop.
•
For misfiring or a fuel trim malfunction, when driving conditions (engine speed, engine coolant tempera-
ture, etc.) are similar to those when the malfunction was first recorded.
NOTE: Sensor 1 indicates the sensor mounted at a position closest to the engine, and sensor 2 indicates the
sensor mounted at the position second closest to the engine.
NOTE: Bank 1 indicates the right bank side cylinder, and bank 2 indicates the left bank side cylinder.
P0551
Power steering pressure sensor circuit range/performance
P0554
Power Steering Pressure Switch Circuit Intermittent
P0660
Intake manifold tuning circuit malfunction
P0705
Transmission range sensor circuit malfunction (RPNDL input)
P0712*
Transmission fluid temperature sensor circuit low input
P0713*
Transmission fluid temperature sensor circuit high input
P0715*
Input/Turbine speed sensor circuit
P0720*
Output speed sensor circuit
P0731*
Gear 1 incorrect ratio
P0732*
Gear 2 incorrect ratio
P0733*
Gear 3 incorrect ratio
P0734*
Gear 4 incorrect ratio
P0736*
Gear R incorrect ratio
P0741
Torque converter clutch circuit performance or stuck off
P0742
Torque converter clutch circuit stuck on
P0743*
Torque converter clutch circuit electrical
P0753*
Shift solenoid "A" electrical
P0758*
Shift solenoid "B" electrical
P0763*
Shift solenoid "C" electrical
P0768*
Shift solenoid "D" electrical
P1603*
Battery backup circuit malfunction
P1751*
A/T control relay malfunction
P2227*
Barometric pressure circuit range/performance problem
P2228*
Barometric pressure circuit low input
P2229*
Barometric pressure circuit high input
DTC NO.
ITEMS
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