Monitor Description
WARNING: This page is about a different variant/trim than selected.
In sequence B and E, the leak detection pump creates negative pressure (vacuum) through the reference orifice. The EVAP system pressure is then measured by the ECM, using the canister pressure sensor, to determine the reference pressure. If the pressure detected meets one of the following conditions, the ECM will illuminated the MIL and store a DTC (2 trip detection logic).
- EVAP pressure is lower than the malfunction criterion.
- EVAP pressure is higher than the malfunction criterion.
- EVAP pressure is not saturated within 60 seconds.
- EVAP pressure difference between sequence B and E is large.
