Conditions For Setting DTC
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- If the FTP sensor voltage is greater than 2.1 volts during the DTC P0446 diagnostic test indicating a blocked vent system, DTC P0446 will set.
- Condition exists for longer than one minute and 40 seconds.