DTC P0446 - Canister Drain Cut Valve (CDCV) Malfunction: Notes
WARNING: This page is about a different car, the 1997 Mazda Millenia. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For connector identification, see CONNECTOR IDENTIFICATION
. For wiring diagram, see WIRING DIAGRAMS - 2.3L
article. Always perform applicable drive cycle test after repair is performed to verify if DTC is reset.
ECM detects no fuel tank pressure difference when CDCV valve is released. Possible causes are:
- Stuck CDCV.
- Drain passage and air filter clogged.
- Damaged hose between CDCV and charcoal canister.