DTC P0452: EVAP Control System Fuel Tank Pressure Sensor Low Input: Condition
WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when Powertrain Control Module (PCM) detects input voltage from Fuel Tank Pressure (FTP) sensor is less than .22 volt with engine running. This is a continuous monitor. MIL is illuminated when PCM detects malfunction during 2 consecutive drive cycles. Possible causes are:
- FTP sensor malfunction.
- Short or open circuit between FTP sensor and PCM.
- PCM malfunction.