Mitsubishi Galant. Manual — part 83
MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-13
PROCEDURE 1
EVAPORATIVE EMISSION CONTROL SYSTEM LEAK MONITOR
DTC
P0442, P0450,P0451, P0455
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 8 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: 45
°
C (113
°
F) or less (The engine is stopped before the test drive is started)
•
Atmospheric temperature: 5
−
45
°
C (41
−
113
°
F)
•
Condition of A/T: Selector lever D range
Test procedure
1. Engine: start
2. Accelerate until the vehicle speed is 89
−
97 km/h (55
−
60 mph).
3. Travel for 200 seconds or more while keeping the vehicle speed at 89
−
97 km/h (55 - 60 mph).
4. While keeping the accelerator pedal opening degree constant, keep the vehicle speed at 89
−
97 km/h (55
−
60 mph) and travel for 150 seconds or more. (During monitor)
5. Return the vehicle to the shop, then turn the ignition switch to "LOCK" (OFF) position.
6. Confirm that the diagnostic trouble code (DTC) is not output.
7. If DTC P0442 is output, refer to DTC P0442
−
Evaporative Emission Control System Leak Detected
.
If DTC P0450 is output, refer to DTC P0450
−
Evaporative Emission Control System Pressure Sensor
Malfunction
If DTC P0451 is output, refer to DTC P0451
−
Evaporative Emission Control System Pressure Sensor Range/
performance
.
If DTC P0455 is output, refer to DTC P0455
−
Evaporative Emission Control System Leak Detected (Gross
Leak)
.
AKX01345
AKX01345
(3)
(2)
(1)
(4)
(5)
200 SECONDS
OR MORE
PREPARATION
PERIOD
ENGINE START
IGNITION
SWITCH:
"LOCK" (OFF)
DURING
MONITOR
150 SECONDS
OR MORE
89 - 97 km/h (55 - 60 mph)
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE SPEED
km/h (mph)
<REFERENCE>
THROTTLE
OPENING
ANGLE (%)
AKX01345 AB
MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-14
PROCEDURE 2
FUEL TRIM MONITOR
DTC
P0171,P0172
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 35 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
−
97
°
C (176 - 207
°
F)
•
Atmospheric temperature: -10
−
60
°
C (14
−
140
°
F)
•
Condition of A/T: Selector lever D range
Test
procedure
1. Engine: start
2. Accelerate until the vehicle speed is 89
−
97 km/h (55
−
60 mph).
3. Travel for 30 minutes or more while keeping the vehicle speed at 89
−
97 km/h (55
−
60
mph). Carry out one gradual deceleration/acceleration returning to 89
−
97 km/h (55 - 60
mph) within 120 seconds. (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.
If DTC P0171 is output, refer to DTC P0171
−
System too lean (Bank1)
.If DTC
P0172 is output, refer to DTC P0171
−
System too rich (Bank1)
AKX01346
AKX01346
(3)
(2)
(1)
(4)
30 MINUTES OR MORE
89 - 97 km/h (55 - 60 mph)
WITH 120 SECONDS
ENGINE START
IGNITION SW-
ITCH: "LOCK"
(OFF)
DURING MONITOR
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE SPEED
km/h (mph)
<REFERENCE>
THROTTLE
OPENING
ANGLE (%)
AKX01346 AB
MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
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).
Decelerate until the vehicle speed is within 56
−
64 km/h (35
−
40 mph).
While keeping the accelerator pedal opening degree constant , 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)
AKX01347
(3)
(2)
(1)
(4)
(5)
(5)
(6)
(6)
(6)
(5)
(5)
(7)
300 SECONDS OR MORE
72 - 97 km/h (45 - 60 mph)
PREPARATION
PERIOD
ENGINE
START
IGNITION
SWITCH:
"LOCK"
(OFF)
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)
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE
SPEED
km/h (mph)
<REFERENCE>
THROTTLE
OPENING
ANGLE (%)
AKX01347AB
MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
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 , 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)
If DTC P0133 is output, refer to DTC P0133
−
O
2
Sensor Circuit Slow Responce (Bank 1 Sensor
1)
If DTC P0136 is output, refer to DTC P0136
−
O
2
Sensor Circuit Malfunction (Bank 1 Sensor
2)
If DTC P0139 is output, refer to DTC P0139
−
O
2
Sensor Circuit Slow Responce (Bank 1 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)
<REFERENCE>
THROTTLE
OPENING
ANGLE (%)
AKX01348 AB
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