Evaporative System Service Port: Testing and Inspection

EVAP SERVICE PORT
Positive pressure is delivered to the EVAP system through the EVAP service port. If fuel vapor leakage in the EVAP system occurs, use a teak detector to locate the leak.







HOW TO DETECT FUEL VAPOR LEAKAGE

CAUTION:
- Never use compressed air or a high pressure pump.
- Do not exceed 4.12 kPa (0.042 kg/sq.cm, 0.6 psi) of pressure in EVAP system.

NOTE:
- Do not start engine.
- Improper installation of adapter to the service port may cause a leak.

With Consult
1. Attach the adapter securely to the EVAP SERVICE port securely.
2. Also attach the pressure pump and hose.
3. Turn ignition switch "ON".
4. Select the "EVAP SYSTEM CLOSE" of "WORK SUPPORT MODE" with CONSULT.
5. Touch "START". A bar graph (Pressure indicating display) will appear on the screen.
6. Apply positive pressure to the EVAP system until the pressure indicator reaches the middle of the bar graph.
7. Remove adapter and hose with pressure pump.
8. Locate the leak using a leak detector. Refer to "Evaporative Emission Line Drawing".

Without Consult
1. Attach the adapter securely to the EVAP service port and pressure pump with pressure gauge to the EVAP service port.
2. Apply battery voltage to between the terminals of both EVAP canister vent control valve and vacuum cut valve bypass valve to make a closed EVAP system.
3. To locate the leak, deliver positive pressure to the EVAP system until pressure gauge points reach 1.38-2.76 kPa (0.014 - 0.028 kg/sq.cm, 0.2 - 0.4 psi).
4. Remove adapter and hose with pressure pump.
5. Locate the leak using a leak detector. Refer to "Evaporative Emission Line Drawing".







EVAPORATIVE EMISSION LINE DRAWING