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1999 forester
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36 Posts
Discussion Starter · #1 ·
My cel came on the other day and it threw the code p0452 at me. I'm assuming its either the fuel pressure sensor or my fuel pump. Has anyone come across this problem before?
 

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Premium Member
2014 Impreza Ltd CVT
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3,319 Posts
P0452 means the sensor output is low .... meaning the sensor is defective ( open ) OR you have a broken wire/bad connection between the ECU and the sensor in the tank.

This error does not point to the actual pressure in the tank being low. but the circuit from the ECU to the Pressure sensor and the return back to the ECU.
 

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Registered
1999 forester
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36 Posts
Discussion Starter · #7 ·
so i went to auto zone and they gave me a read out of what it could be and it said that it could be the evap sensor. is that the same as the fuel tank pressure sensnor? and where is it located?
 
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