NO.20 FUEL ODOR (IN ENGINE COMPARTMENT) [LF, L5]

id010397802600

20

FUEL ODOR (IN ENGINE COMPARTMENT)
DESCRIPTION
•  Gasoline fuel smell or visible leakage.
POSSIBLE CAUSE
•  Excessive fuel pressure
•  Purge solenoid valve malfunction
•  Fuel tank vent system blockage
•  Charcoal canister malfunction
•  Fuel leakage from fuel system
•  PCM malfunction
Warning
The following troubleshooting flow chart contains fuel system diagnosis and repair procedures. Read following warnings before servicing fuel system:
•  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 injuries 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 [LF, L5].) (See AFTER SERVICE PRECAUTION [LF, L5].)
Caution
•  Disconnecting/connecting the quick release connector without cleaning it may cause damage to the fuel pipe and the 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
Visually inspect for fuel leakage at the fuel injector O-ring and fuel line.
Repair or replace the malfunctioning part according to the inspection results.
Inspect the fuel line pressure.
(See FUEL LINE PRESSURE INSPECTION [LF, L5].)
Is the fuel line pressure correct?
Yes
Go to the next step.
No
Replace the fuel pump unit.
(See FUEL PUMP UNIT REMOVAL/INSTALLATION [LF, L5].)
2
Inspect for blockage/restriction vacuum hose between the engine vacuum port and the charcoal canister.
Inspect for blockage in the fuel tank vent system.
Is there any malfunction?
Yes
Replace the vacuum hose.
No
Go to the next step.
3
Inspect the purge solenoid valve.
(See PURGE SOLENOID VALVE INSPECTION [LF, L5].)
Is the solenoid operating properly?
Yes
Go to the next step.
No
Replace the purge solenoid valve.
(See PURGE SOLENOID VALVE REMOVAL/INSTALLATION [LF, L5].)
4
Connect the M-MDS to the DLC-2.
Switch the ignition to ON (engine off).
Retrieve any DTCs.
(See ON-BOARD DIAGNOSTIC TEST [LF, L5].)
Are any DTCs present?
Yes
Go to the appropriate DTC inspection.
(See DTC TABLE [LF, L5].)
No
Inspect the charcoal canister for fuel saturation.
•  If an excess amount of liquid fuel is present:
―  Replace the charcoal canister.
5
•  Verify the test results.
―  If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [LF, L5].)
―  If a malfunction remains, inspect the related Service Information perform repair or diagnosis.
•  If the vehicle repaired, troubleshooting is completed.
•  If the vehicle not repaired or additional diagnostic information not available, replace the PCM. (See PCM REMOVAL/INSTALLATION [LF, L5].)