NO.20 FUEL ODOR (IN ENGINE COMPARTMENT) [SKYACTIV-G 2.0, SKYACTIV-G 2.5]
id0103g3802600
20 |
FUEL ODOR (IN ENGINE COMPARTMENT) |
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DESCRIPTION
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• Gasoline fuel smell or visible leakage.
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POSSIBLE CAUSE
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• Missing or loose fuel filler cap
• Fuel leakage from fuel system
• Improper connection of evaporative related vacuum hoses
• Purge solenoid valve malfunction
• Excessive fuel pressure
• Charcoal canister malfunction
• Fuel system vent system blockage
• Fuel pressure sensor malfunction
• High pressure fuel pump malfunction
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Diagnostic Procedure
STEP |
INSPECTION |
RESULTS |
ACTION |
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1
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INSPECT FOR MISSING OR LOOSE FUEL FILLER CAP
• Visually inspect if the fuel filler cap is missing or loose.
• Is there any malfunction?
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Yes
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Repair or replace the fuel filler cap.
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No
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Go to the next step.
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2
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INSPECT FUEL SYSTEM FOR FUEL LEAKAGE
• Visually inspect the fuel leakage at the fuel line.
• Is there any leakage?
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Yes
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Repair or replace the malfunctioning part according to the inspection results.
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No
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Go to the next step.
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3
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INSPECT VACUUM HOSE CONNECTION
• Inspect the vacuum hose routing.
• Are vacuum hoses routed properly?
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Yes
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Go to the next step.
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No
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Reconnect the vacuum hose.
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4
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INSPECT PURGE SOLENOID VALVE
• Inspect the airflow of purge solenoid valve.
• Is the purge solenoid airflow properly?
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Yes
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Go to the next step.
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No
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Replace the purge solenoid valve.
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5
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INSPECT WHETHER MALFUNCTION IS IN HIGH PRESSURE FUEL PUMP OR CHARCOAL CANISTER
• Start the engine and warm it up completely.
• Access the FUEL_PRES PID using the M-MDS at idle.
• Is the FUEL_PRES PID value approx. 3 MPa {31 kgf/cm2, 435 psi}?
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Yes
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Inspect the charcoal canister for fuel saturation.
• If excess amount of liquid fuel is present:
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No
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Inspect the fuel pressure sensor and the high pressure fuel pump.
Replace the fuel distributor and/or the high pressure fuel pump if necessary.
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6
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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.
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