DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0451 | EVAP SYS PRES SEN (Evaporative emission system pressure sensor/switch range/performance) | ECM detects a sloshing signal from the EVAP control system pressure sensor |
POSSIBLE CAUSE
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
NOTE: Never remove fuel filler cap during DTC confirmation procedure.
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
With CONSULT>>GO TO 2.
Without CONSULT>>GO TO 5.
2.PERFORM DTC CONFIRMATION PROCEDURE-1
With CONSULT
NOTE: Do not depress accelerator pedal even slightly.
Is 1st trip DTC detected? YES >> Proceed to EC-328, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
NOTE: It will take at most 2 hours until “OFF” of “EVAP DIAG READY” changes to “ON”.
NOTE: Never turn ignition switch ON during 90 minutes.
Which is displayed on CONSULT? CMPLT>> GO TO 4.
YET >> 1. Perform DTC CONFIRMATION PROCEDURE again.
2. GO TO 1.
4.PERFORM DTC CONFIRMATION PROCEDURE-3
With CONSULT
Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Proceed to EC-328, "Diagnosis Procedure".
NO >> INSPECTION END
5.PERFORM DTC CONFIRMATION PROCEDURE-4
With GST
NOTE: Do not depress accelerator pedal even slightly.
Is 1st trip DTC detected? YES >> Proceed to EC-328, "Diagnosis Procedure".
NO >> GO TO 6.
6.PERFORM DTC CONFIRMATION PROCEDURE-5
With GST
NOTE: Never turn ignition switch ON during 90 minutes.
Is 1st trip DTC detected? YES >> Proceed to EC-328, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER
Water should not exist.
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness connector.
2.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts
4.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR SIGNAL CIRCUIT
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
6.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check the EVAP control system pressure sensor. Refer to EC-330, "Component Inspection".
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation".
7.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Always replace O-ring with a new one.
CAUTION:
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation".
P2004 intake manifold runner control valve
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P2004
TUMBLE CONT/V
(Intake manifold runner control stuck open
bank 1)
The target angle of intake manifold runner control valve controlled
b ...
Component parts
METER SYSTEM
METER SYSTEM : Component Parts Location
Vehicle front
View of the fuel pump and fuel level
sensor inspection hole covers with
the rear seat removed.
View of front engine assembly
No.
Component
Function
1
Combination me ...
P0456 EVAP control system
DTC Description
DTC DETECTION LOGIC
This diagnosis detects leaks in the EVAP line between fuel tank and EVAP
canister purge volume control solenoid
valve, using the negative pressure caused by decrease of fuel temperature in the
fuel tank after turning
ignition switch OFF.
If ECM judges t ...