P0455 Infiniti

P0455 Infiniti - EVAP Control System Gross Leak Detected

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P0455 Infiniti Comments |  Add Comment
Possible causes
- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking
What does this mean? What does this mean?
Tech notes
The P0455 it’s a very common code, because the code is set if the gas cap is loose or missing. Start by tighten the gas cap and clearing the code. In most cases the code can be clear by disconnecting the car battery for about 30 minutes.

There is an Infiniti Service Bulletin to help diagnose the P0455 code:
Infiniti OBDII Code P0455
What does this mean? What does this mean?
When is the code detected?
Malfunction is detected when EVAP control system has a leak, EVAP control system does not operate properly.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors
P0455 Infiniti Description

This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.

The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.

OBDII Code P0455 Infiniti - EVAP Control System Gross Leak Detected - Engine-Codes.com
P0455 Infiniti Information for specific Infiniti models
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INFINITI Technical Service Bulletins for P0455 code
2003 INFINITI M45 Electrical System Details
2003 INFINITI Q45 Electrical System Details
What does this mean? What does this mean?
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1
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Repair Difficulty Level
3
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