E39 / P0455 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE
Possible smell of petrol.
EVAP. Serious Leakage in System.
Fault symptom
CHECK ENGINE
Possible smell of petrol.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| The battery voltage must be over 11 V. |
| Engine running more than 17 minutes. |
| Coolant temperature upon start between 3.8 °C and 35.3 °C. |
| Ambient temperature between 4-30°C. |
| Fuel level between 10% and 90%. |
| Atmospheric pressure more than 70 kPa. |
| NONE of the following DTCs must be detected: |
| P0116, P0117, P0118, P0119
P0128 |
| P0122, P0123, P0222, P0223 |
| P0443, P0446, P0452, P0453, P0454 |
| P2227, P2228, P2229, P2230 |
| • | The diagnosis is performed by closing the shut-off valve and opening the evap canister purge valve while the tank pressure is being registered. The pressure should then drop. |
| • | Bleeder valve closed; pressure increase in Pa/s calculated. Pressure must not rise too much. |
Fault criteria:
| The pressure does not fall by 2740 Pa or the time required to reach the required pressure change is too long. |
Diagnostic help
Diagnosis regards:
| Blockage in suction line to evap canister purge valve or a detached hose can cause this DTC. |
| An improperly screwed fuel cap is often the reason this diagnostic trouble code is generated. Before beginning fault diagnosis, check that the tank cap is properly fitted. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
