April 5, 2026: LEMON Manuals is launched! Read the announcement.

No. 27 Fuel Refill Concerns

POSSIBLE CAUSE

27

FUEL REFILL CONCERNS

DESCRIPTION

Fuel tank is not filled smoothly.

POSSIBLE CAUSE

Clogged EVAP pipes
Non return valve malfunction
Improper use of fuel nozzle
Inadequate fuel filling speed
WARNING:
The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before servicing the 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 ).
  
  (See AFTER SERVICE PRECAUTION ).
CAUTION:
- Disconnecting/connecting quick release connector without cleaning it may 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		ACTION
1	Connect the WDS or equivalent to the DLC-2. Turn the ignition switch to the ON position (Engine off). Retrieve any DTCs. Are there any DTCs displayed?	Yes	DTC is displayed: Go to the appropriate DTC inspection. (See DTC TABLE ).
1		No	No DTC is displayed: Go to the next step.
2	Remove the fuel-filler pipe. Make sure the non return valve is installed properly. Inspect non return valve operation. Is the non return valve normal?	Yes	Inspect for the following: Improper use of fuel nozzle Inadequate fuel filling speed
2		No	Non return valve is installed improperly: Reinstall non return valve to proper position. Non return valve does not operate properly: Replace non return valve.
3	Verify test results. If normal, return to diagnostic index to service any additional symptoms. (See ENGINE SYMPTOM TROUBLESHOOTING ). If malfunction remains, inspect related Service Bulletins and/or On-line Repair 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. (See PCM REMOVAL/INSTALLATION ).