NO.20 FUEL ODOR (IN ENGINE COMPARTMENT) [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5]

id0103g8802600

20

FUEL ODOR (IN ENGINE COMPARTMENT)
DESCRIPTION
•  Gasoline fuel smell or visible leakage.
POSSIBLE CAUSE
•  Missing or loose fuel filler cap
•  Fuel filler cap malfunction (seal malfunction)
•  Fuel leakage from fuel system
•  Charcoal canister damage
•  Improper connection of evaporative related vacuum hoses
•  Fuel leakage at the fuel injector
•  Purge solenoid valve malfunction (stuck)
Warning
The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services:
•  Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
•  Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete “BEFORE SERVICE PRECAUTION” and “AFTER SERVICE PRECAUTION” described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See AFTER SERVICE PRECAUTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
Caution
•  Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign material.

Diagnostic Procedure

STEP

INSPECTION

RESULTS

ACTION
1
INSPECT FOR MISSING OR LOOSE FUEL FILLER CAP
•  Visually inspect if the fuel filler cap is missing or loose.
•  Is there any malfunction?
Yes
Repair or replace the fuel filler cap.
No
Go to the next step.
2
INSPECT VACUUM HOSE CONNECTION
•  Inspect the vacuum hose routing.
•  Are vacuum hoses routed properly?
Yes
Go to the next step.
No
Reconnect the vacuum hose.
(See INTAKE-AIR SYSTEM VACUUM HOSE ROUTING DIAGRAM [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
(See EMISSION SYSTEM LOCATION INDEX [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
3
INSPECT FUEL SYSTEM FOR FUEL LEAKAGE
•  Visually inspect the fuel leakage at the fuel line.
•  Is there any leakage?
Yes
Repair or replace the malfunctioning part according to the inspection results.
No
Go to the next step.
4
INSPECT PURGE SOLENOID VALVE
•  Inspect the airflow of purge solenoid valve.
•  Is the purge solenoid airflow properly?
Yes
Go to the next step.
No
Replace the purge solenoid valve.
(See PURGE SOLENOID VALVE REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
5
INSPECT CHARCOAL CANISTER
•  Inspect the charcoal canister.
•  Is there cracking or damage in the charcoal canister?
Yes
Repair or replace the malfunctioning part according to the inspection results.
(See CHARCOAL CANISTER REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
No
Remove the fuel injector and visually inspect fuel injector or leakage.
(See FUEL INJECTOR REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5].)
•  If there is any malfunction:
―  Replace the fuel injector if necessary.
6
Verify the test results.
•  If normal, return to the diagnostic index to service any additional symptoms.
•  If a malfunction remains, inspect the related Service Information and perform the repair or diagnosis.
―  If the vehicle is repaired, troubleshooting is completed.
―  If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM.