DME 7.8 DME 7.8 0 · 0-75P0455

DME 7.8 DME 7.8 0 0-75P0455 94 Fuel Tank Ventilation System (Major Leak) - Below Limit Diagnosis conditions • Oxygen sensing system active • No secondary air diagnosis • Engine running • Vehicle speed = 0 km/h • Intake air temperature between 4.5 °C and 60 °C • Battery positive voltage greater than 11 V • Engine load less than 30% • EVAP canister burden less than 3 • Altitude correction factor greater than 0.75 • Time elapsed after engine start-up > 990 seconds or mixture adaptation completed • No faults in memory Possible fault cause ♦Tank cap missing ♦Tank cap seal ♦Ventilation lines detached from EVAP canister ♦Ventilation line detached from tank ♦Ventilation line detached from fuel tank vent ♦Break in ventilation lines Affected terminals - Diagnosis/troubleshooting 2023 P0455 0-75 page 1 Printed in Germany – 1, 2000 p0455