Mitsubishi Galant 9G. Manual — part 646
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-26
.
PROCEDURE 4
HEATED OXYGEN SENSOR MONITOR
DTC
P0133, P0139, P0153, P0159
Drive cycle
pattern
This monitor [from start to ignition switch "LOCK" (OFF) position] will be completed while driving the
vehicle 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
1. Engine: start
2. Accelerate until the vehicle speed is 56
− 64 km/h (35 − 40 mph).
3. While keeping the accelerator pedal opening degree constant, keep the vehicle speed at 56
− 64
km/h (35
− 40 mph) and travel for 120 seconds or more. (During monitor)
4. Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position.
5. Confirm that the diagnostic trouble code (DTC) is not output.
6. If DTC P0133 is output, refer to DTC P0133
− Cylinder 1, 4 Heated Oxygen Sensor Circuit Slow
Response (Sensor 1)
If DTC P0139 is output, refer to DTC P0139
− Cylinder 1, 4 Heated Oxygen Sensor Circuit Slow
Response (Sensor 2)
If DTC P0153 is output, refer to DTC P0153
− Cylinder 2, 3 Heated Oxygen Sensor Circuit Slow
Response (Sensor 1)
If DTC P0159 is output, refer to DTC P0159
− Cylinder 2, 3 Heated Oxygen Sensor Circuit Slow
Response (Sensor 2)
AKX01348
AKX01348
(3)
(2)
(1)
(4)
120 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
ENGINE
START
IGNITION
SWITCH: "LOCK"
(OFF)
DURING MONITOR
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE SPEED
km/h (mph)
AKX01348 AB
CALCULATED
LOAD (%)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-27
.
PROCEDURE 5
.
EXHAUST GAS RECIRCULATION (EGR) SYSTEM MONITOR
DTC
P0401
Drive cycle
pattern
This monitor [from start to ignition switch "LOCK" (OFF) position] will be completed while driving the
vehicle 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
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).
4. Fully close the throttle from an engine speed of 2,000
− 3,000 r/min, and while keeping the clutch
engaged, decelerate to approximately 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 "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
.
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)
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)
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)
AKX01349AB
CALCULATED
LOAD (%)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-28
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, P0506, P0507
• Sensors and switches: P0069, P0101, P0102, P0103, P0111, P0112, P0113, P0116,
P0117, P0118, P0125, P0181, P0182, P0183, P0335, P0340, P0461, P2066,
• 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, P0403, P0443, P0446, P0462, P0463, P2228, P2229
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-29
Drive cycle
pattern
This monitor [from start to ignition switch "LOCK" (OFF) position] will be completed while
driving the vehicle 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
1. Engine: start
2. Accelerate until the vehicle speed is 56
− 64 km/h (35 − 40 mph), and travel for 300
seconds or more.
3. Return the vehicle to the shop.
4. 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.
NOTE: Vehicles for Canada, the headlight, taillight, etc. remain lit even when the lighting
switch is in "OFF" positions but this is no problem for checks.
• A/C switch: OFF
• Lights and all accessories: OFF
• Transaxle: P range
• Steering wheel: Straightforward position
5. Confirm that the diagnostic trouble code (DTC) is not output.
6. If a DTC is displayed, refer to Diagnostic Trouble Code Chart
OTHER MONITOR (Main components, sensors and switches, wire breakage and short circuit)
AKX01350
AKX01350
(3)
(2)
(1)
(4)
300 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
ENGINE: IDLING
TRANSMISSION: NEUTRAL
300 SECONDS
ENGINE START
IGNITION
SWITCH:"LOCK"
(OFF)
64
(40)
32
(20)
0
100
50
0
VEHICLE
SPEED
km/h (mph)
AKX01350 AB
CALCULATED
LOAD (%)
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