Question about 2004 Ford Focus
THERE WAS A CODE STORED & THIS IS WHAT THE CODE SHOWED THAT WAS WRONG. WHAT IS THIS SENSOR & WHERE IS IT? this is a 2003 focus se the brake light stays on, the abs light was on , now I have it off. I need some input. thanks
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Posted on Jan 02, 2017
P0453 is for the fuel tank pressure sensor. This code means that the voltage on the sensor was greater than 4.5V during key on engine off or during any engine operating mode.
Normal voltage from this sensor with no vacuum or pressure on the system should be 2.37 to 2.97V.
PCM sends a reference voltage of 5V to the sensor and tells if there is pressure or vacuum in the fuel tank by the voltage that returns from the sensor.
Possible causes are:
Usually it is a loose connector at the sensor or a bad sensor.
It mounts on top of the fuel tank,has a 3 wire connector. To replace it you have to push down on it and twist,if I remember right CC.
Posted on Mar 10, 2009
turn the ignition to on position and disconnect one of terminals of battery for 30 sec to one minute and reconnect battery . turn off ignition and restart vehicle . If that doesn't work go to dealer .
Posted on Oct 29, 2009
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