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P0452 indicates that the Fuel Tank Pressure(FTP) sensor circuit has low input voltage on that circuit. Possible causes: Fuel tank pressure (FTP) sensor completely submerged in liquid fuel. Inside contamination of the electrical connector on the FTP sensor. FTP short to SIG RTN or PWR GND. Damaged FTP sensor. Damaged PCM.

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โˆ™ 2006-03-16 14:28:50
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Q: What could be the cause of P0452-evaporative emission system pressure sensorswitch low input fault on 1998 crown Victoria?
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