Possible Causes
WARNING: This page is about a different car, the 2002 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
- Intermittent open or short in Fuel Tank Pressure (FTP) sensor circuit (P0451).
- Intermittent open or short in Fuel Level Input (FLI) circuit (P0461).