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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Ignition And Control Systems - Symptom Related Diagnostic Procedures >> Readiness Code (B6284T; 1999-2001) >> Readiness Code >> Quick fuel tank system test >> General about fuel tank system test

General about fuel tank system test

The engine management system has the built-in function of carrying out a quick check of fuel tank system sealing. By activating the function the control module determines if the fuel tank system is fault free or if there is any leakage faster than usual. The condition for the test is that no diagnostic trouble codes (DTCs) are stored, engine temperature is above 70 °C (158 °F) and that the engine is idling.

For further information about fuel tank system test diagnostic, see Leak diagnostic .

  1. Canister purge (CP) valve
  2. EVAP canister
  3. EVAP canister shut-off valve
  4. Fuel tank pressure sensor
  5. Air cleaner (ACL)
Fig 1: Identifying Canister Purge (CP) Valve, EVAP Canister, Shut-Off Valve, Fuel Tank Pressure Sensor And Air Cleaner (ACL)
GLL100945Courtesy of VOLVO CARS OF NORTH AMERICA.
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