NO.19 FUEL ODOR (IN ENGINE COMPARTMENT) [G6]

id010395851200

19

FUEL ODOR (IN ENGINE COMPARTMENT)
DESCRIPTION
Gasoline fuel smell or visible leakage
POSSIBLE CAUSE
•  Excessive fuel pressure
•  Fuel tank vent system blockage
•  Charcoal canister malfunction
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 injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete the "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual.
Caution
•  If there is foreign material on the connecting area of the quick release connector, it might damage the connector or fuel pipe. To prevent this, disconnect the connector and clean the connecting area before connecting.

Diagnostic procedure

STEP

INSPECTION

RESULTS

ACTION
1
Visually inspect for fuel leakage at the fuel injector O-ring and fuel line.
Service if necessary.
Install fuel pressure gauge between fuel main pipe and the fuel distributor.
Start the engine and run it idle.
Then stop engine.
Does fuel pressure remain at specification for 60 s when ignition switch is turned on and off?
(See FUEL PUMP UNIT INSPECTION [G6].)
Yes
Go to the next step.
No
Inspect pressure regulator for high pressure cause.
2
Inspect for blockage/restriction or open circuit in wiring harness between the engine vacuum port and the charcoal canister.
Inspect for blockage in fuel tank vent system.
Is fault indicated?
Yes
Replace the vacuum hose.
No
Go to the next step.
3
Inspect the purge solenoid valve.
(See PURGE SOLENOID VALVE INSPECTION [G6].)
Is the solenoid operating properly?
Yes
Go to the next step.
No
Replace the purge solenoid valve.
4
Connect the M-MDS to the DLC-2.
Turn the ignition switch to the ON position (Engine off).
Retrieve any DTC.
Is “NO CODES RECIEVED” or “SYSTEM PASSED” displayed?
Yes
No DTC is displayed:
Inspect the charcoal canister for fuel saturation.
•  If excess amount of liquid fuel is present, replace the charcoal canister.
No
DTC is displayed:
Go to the appropriate DTC test.
5
•  Verify test results.
―  If normal, return to diagnostic index to service any additional symptoms.
―  If malfunction remains, inspect related Service Information and perform repair or diagnosis.
•  If vehicle is repaired, troubleshooting completed.
•  If vehicle is not repaired or additional diagnostic information is not available, replace the PCM.