Mitsubishi Eclipse. Manual — part 368
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-15
PROCEDURE 1
EVAPORATIVE EMISSION SYSTEM LEAK MONITOR
DTC
P0441, P0442, P0451, P0452, P0453, P0455, P0456
Drive cycle
pattern
One drive [from start to ignition switch to the "LOCK" (OFF) position] will be completed while
traveling with the following drive 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. Test
drive must be completed within 16 minutes of "Key on."
Inspection
conditions
• Engine coolant temperature: 30°C (75°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 may not run if fuel tank is over 2/3 full.
AKX01345
AKX01345
(3)
(2)
(1)
(4)
(5)
200 SECONDS
OR MORE
PREPARATION
PERIOD
ENGINE START
IGNITION SWITCH:
"LOCK" (OFF) POSITIO
DURING
MONITOR
150 SECONDS
OR MORE
89 - 97 km/h (55 - 60 mph)
M/T: 5TH SPEED
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE SPEED
km/h (mph)
CALCULATED
LOAD (%)
AKX01345 AF
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-16
.
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). (M/T = 5th speed)
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 the "LOCK" (OFF) position.
6. Confirm that the diagnostic trouble code (DTC) is not output.
7. If DTC P0441 is output, refer to DTC P0441
− Evaporative Emission Control System
Incorrect Purge Flow
.
If DTC P0442 is output, refer to DTC P0442
− Evaporative Emission Control System Leak
Detected (Small Leak)
If DTC P0451 is output, refer to DTC P0451
− Evaporative Emission Control System
Pressure Sensor Range/performance
If DTC P0452 is output, refer to DTC P0452
− Evaporative Emission Control System
Pressure Sensor Low Input
If DTC P0453 is output, refer to DTC P0453
− Evaporative Emission Control System
If DTC P0455 is output, refer to DTC P0455
− Evaporative Emission Control System Leak
Detected (Gross Leak)
If DTC P0456 is output, refer to DTC P0456
− Evaporative Emission Control System Leak
Detected (Very Small Leak)
EVAPORATIVE EMISSION SYSTEM LEAK MONITOR
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-17
PROCEDURE 2
.
FUEL TRIM MONITOR
DTC
P0171, P0172,P0174, P0175
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). (M/T = 5th speed) Carry out one gradual acceleration /deceleration, returning to a
speed of 50
− 60 mph within 120 seconds. (During monitor)
4. Return the vehicle to the shop, then turn the ignition switch to the "LOCK" (OFF) position.
5. Confirm that the diagnostic trouble code (DTC) is not output.
6. If DTC P0171 is output, refer to DTC P0171
If DTC P0172 is output, refer to DTC P0172
− System too rich (Bank1)
If DTC P0174 is output, refer to DTC P0174
If DTC P0175 is output, refer to DTC P0175
− System too rich (Bank2)
AKX01346
AKX01346
(3)
(2)
(1)
(4)
30 MINUTES OR MORE
89 - 97 km/h (55 - 60 mph)
M/T: 5TH SPEED
WITH 120 SECONDS
ENGINE START
IGNITION SW-
ITCH: "LOCK"
(OFF) POSITIO
DURING MONITOR
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE SPEED
km/h (mph)
CALCULATED
LOAD (%)
AKX01346 AF
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-18
PROCEDURE 3
CATALYTIC CONVERTER MONITOR
DTC
P0421, P0431
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
1. Engine: start
2. Accelerate until the vehicle speed is 72 km/h (45 mph).
3. Travel for 300 seconds or more while keeping the vehicle speed at 72
− 97 km/h (45 - 60
mph). (M/T = 5ht speed)
4. Decelerate until the vehicle speed is within 56
− 64 km/h (35 − 40 mph).
5. 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)
6. 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 monitoring sessions.
7. Return the vehicle to the shop, then turn the ignition switch to the "LOCK" (OFF) position.
8. Confirm that the diagnostic trouble code (DTC) is not output.
9. 9. If DTC P0421 is output, refer to DTC P0421
− Warm Up Catalyst Efficiency Below
Threshold (Bank 1)
.
If DTC P0431 is output, refer to DTC P0431
− Warm Up Catalyst Efficiency Below
Threshold (Bank 2)
.
AKX01347
(3)
(2)
(1)
(4)
(5)
(5)
(6)
(6)
(6)
(5)
(5)
(7)
300 SECONDS OR MORE
72 - 97 km/h (45 - 60 mph)
M/T: 5TH SPEED
PREPARATION
PERIOD
ENGINE
START
IGNITION
SWITCH:
"LOCK"
(OFF) POSITI
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)
M/T: 4TH SPEED
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE
SPEED
km/h (mph)
CALCULATED
LOAD (%)
AKX01347AF
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