Infiniti G37 Coupe. Manual - part 534

P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-317

< COMPONENT DIAGNOSIS >

[VQ37VHR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace EVAP control system pressure sensor

EC-318

< COMPONENT DIAGNOSIS >

[VQ37VHR]

P0455 EVAP CONTROL SYSTEM

P0455 EVAP CONTROL SYSTEM

DTC Logic

INFOID:0000000001734136

DTC DETECTION LOGIC

This diagnosis detects a very large leak (fuel filler cap fell off etc.) in EVAP system between the fuel tank and
EVAP canister purge volume control solenoid valve.

CAUTION:

• Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the

MIL may come on.

• If the fuel filler cap is not tightened properly, the MIL may come on.
• Use only a genuine NISSAN rubber tube as a replacement.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

CAUTION:

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0455

EVAP control system 
gross leak detected

EVAP control system has a very large leak such 
as fuel filler cap fell off, EVAP control system 
does not operate properly.

• Fuel filler cap remains open or fails to 

close.

• Incorrect fuel tank vacuum relief valve
• Incorrect fuel filler cap used
• Foreign matter caught in fuel filler cap.
• Leak is in line between intake manifold 

and EVAP canister purge volume control 
solenoid valve.

• Foreign matter caught in EVAP canister 

vent control valve.

• EVAP canister or fuel tank leaks
• EVAP purge line (pipe and rubber tube) 

leaks

• EVAP purge line rubber tube bent.
• Loose or disconnected rubber tube
• EVAP canister vent control valve and the 

circuit

• EVAP canister purge volume control so-

lenoid valve and the circuit

• Fuel tank temperature sensor
• O-ring of EVAP canister vent control 

valve is missing or damaged.

• EVAP control system pressure sensor
• Refueling EVAP vapor cut valve
• ORVR system leaks

PBIB1026E

P0455 EVAP CONTROL SYSTEM

EC-319

< COMPONENT DIAGNOSIS >

[VQ37VHR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Never remove fuel filler cap during the DTC Confirmation Procedure.
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

NOTE:
Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve
properly.
TESTING CONDITION:
• Perform “DTC WORK SUPPORT” when the fuel level is between 1/4 and 3/4 full, and vehicle is placed

on flat level surface.

• Open engine hood before conducting the following procedures.

Do you have CONSULT-III?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT-III

1.

Tighten fuel filler cap securely until ratcheting sound is heard.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

4.

Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.

5.

Make sure that the following conditions are met.
COOLAN TEMP/S: 0 - 70

°

C (32 - 158

°

F)

INT/A TEMP SE: 0 - 60

°

C (32 - 140

°

F)

6.

Select “EVAP SML LEAK P0442/P1442” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode
with CONSULT-III.
Follow the instruction displayed.
NOTE:
If the engine speed cannot be maintained within the range displayed on the CONSULT-III screen, go to

EC-13, "BASIC INSPECTION : Special Repair Requirement"

.

Which is displayed on CONSULT-III screen?

OK

>> Go to 

EC-320, "Diagnosis Procedure"

.

NG

>> GO TO 3.

3.

CHECK DTC

Check DTC.

Which DTC is detected?

P0455 >> Go to 

EC-326, "Diagnosis Procedure"

.

P0442 >> Go to 

EC-283, "Diagnosis Procedure"

.

4.

PERFORM DTC CONFIRMATION PROCEDURE

With GST

NOTE:
Be sure to read the explanation of Driving Pattern in 

EC-557, "How to Set SRT Code"

 before driving vehicle.

1.

Start engine.

2.

Drive vehicle according to Driving Pattern.

3.

Stop vehicle.

4.

Turn ignition switch OFF, wait at least 10 seconds and then turn ON.

5.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES-1 >> P0455: Go to 

EC-326, "Diagnosis Procedure"

.

YES-2 >> P0442: Go to 

EC-283, "Diagnosis Procedure"

.

YES-3 >> P0441: Go to 

EC-279, "Diagnosis Procedure"

.

NO

>> INSPECTION END

EC-320

< COMPONENT DIAGNOSIS >

[VQ37VHR]

P0455 EVAP CONTROL SYSTEM

Diagnosis Procedure

INFOID:0000000001734137

1.

CHECK FUEL FILLER CAP DESIGN

1.

Turn ignition switch OFF.

2.

Check for genuine NISSAN fuel filler cap design.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace with genuine NISSAN fuel filler cap.

2.

CHECK FUEL FILLER CAP INSTALLATION

Check that the cap is tightened properly by rotating the cap clockwise.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Open fuel filler cap, then clean cap and fuel filler neck threads using air blower. Retighten until

ratcheting sound is heard.

3.

CHECK FUEL FILLER CAP FUNCTION

Check for air releasing sound while opening the fuel filler cap.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK FUEL TANK VACUUM RELIEF VALVE

Refer to 

EC-507, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace fuel filler cap with a genuine one.

5.

CHECK EVAP PURGE LINE

Check EVAP purge line (pipe, rubber tube, fuel tank and EVAP canister) for cracks, improper connection or
disconnection.
Refer to 

EC-80, "System Diagram"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or reconnect the hose.

6.

CLEAN EVAP PURGE LINE

Clean EVAP purge line (pipe and rubber tube) using air blower.

>> GO TO 7.

7.

CHECK EVAP CANISTER VENT CONTROL VALVE

Check the following.
• EVAP canister vent control valve is installed properly.

Refer to 

EC-604, "Removal and Installation"

.

• EVAP canister vent control valve.

Refer to 

EC-298, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace EVAP canister vent control valve and O-ring.

SEF915U