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DTC P0453: EVAP Control System Pressure Sensor, High Input: Condition

WARNING: This page is about a different car, the 2002 Mazda Protege5 and 2002 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.

DTC is set when engine coolant temperature is less than 176°F (80°C) and Fuel Tank Pressure (FTP) sensor input is more than 4.79 volts. This is a continuous monitor. MIL is illuminated when PCM detects malfunction during 2 consecutive drive cycles. Possible causes are:

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