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

BME010300103258

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 SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual.
  (See BEFORE SERVICE PRECAUTION [L3].)
  (See AFTER SERVICE PRECAUTION [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 the fuel injector O-ring and fuel line. Service if necessary. Install a fuel pressure gauge between the fuel pipe and the fuel distributor. Start the engine and run it at idle. Measure fuel line pressure at idle.
Is fuel line pressure correct at idle?
(See FUEL LINE PRESSURE INSPECTION [L3].)
Yes
Go to the next step.
No | Replace the fuel pump unit. (See FUEL PUMP UNIT REMOVAL/INSTALLATION [L3].)
2 | Inspect for blockage/restriction or open between the engine vacuum port and the charcoal canister. Inspect for blockage in the fuel tank vent system. Is the malfunction indicated? | Yes | Replace the vacuum hose.
No | Go to the next step.
3 | Inspect the purge solenoid valve. (See PURGE SOLENOID VALVE INSPECTION [L3].) Is the solenoid operating properly? | Yes | Go to the next step.
No | Replace the purge solenoid valve.
4 | Connect the WDS or equivalent to the DLC-2. Retrieve any continuous memory, KOEO and KOER DTCs. Are there any DTCs displayed? | Yes | DTC is displayed: Go to the applicable DTC inspection. (See DTC TABLE [L3].)
No | No DTC is displayed: Inspect the charcoal canister for fuel saturation. If excess amount of liquid fuel is present, replace the charcoal canister.
5 | Verify test results. • If normal, return to diagnostic index to service any additional symptoms. • If malfunction remains, replace PCM.