NO.20 FUEL ODOR (IN ENGINE COMPARTMENT) [L3]

BME010300000W22

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
Warning
The following troubleshooting flow chart contains fuel system diagnosis and repair procedures. Read following warnings before performing 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 "BEFORE REPAIR PROCEDURE" and "AFTER REPAIR PROCEDURE" described in this manual.
(See BEFORE REPAIR PROCEDURE [L3].)
(See AFTER REPAIR PROCEDURE [L3].)
Caution
• Disconnecting/connecting quick release connector without cleaning it may possibly cause damage to fuel pipe and quick release connector. Always clean 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 fuel injector O-ring and fuel line.
Service as necessary.
Install fuel pressure gauge between fuel pipe and fuel distributor.
Start engine and run it at idle.
Measure fuel line pressure at idle.
Is fuel line pressure correct at idle?
Yes
Go to next step.
No
Replace fuel pump unit.
2
Inspect for blockage/restriction or open between engine vacuum port and charcoal canister.
Inspect for blockage in fuel tank vent system.
Is fault indicated?
Yes
Replace vacuum hose.
No
Go to next step.
3
Inspect purge solenoid valve.
Is solenoid operating properly?
Yes
Go to next step.
No
Replace purge solenoid valve.
4
Connect WDS or equivalent to DLC-2.
Retrieve any continuous memory, KOEO and KOER DTCs.
Are there any DTCs displayed?
Yes

DTC is displayed:

Go to appropriate DTC test.
No

No DTC is displayed:

Inspect charcoal canister for fuel saturation.
If excess amount of liquid fuel is present, replace charcoal canister.
5
Verify test results.
• If okay, return to diagnostic index to service any additional symptoms.
• If malfunction remains, replace PCM.