Download - How Fuel Tank Pressure Sensor Works
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How Fuel Tank Pressure Sensor
Works?
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The fuel tank pressure sensor measures the positive and
negative pressure in the fuel tank.
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It also measures and monitors the vapors
inside the engine.
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Where it is located?
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The fuel tank pressure sensor is a part of the fuel pump assembly which is mounted on top of the
tank or inside the tank.
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It is also a part of the evaporative emissions system (EVAP) that reads the fuel pressure to detect evaporative leaks.
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The power train control module analyses the data sent by fuel
pressure sensor and transfers exact need of fuel to engine
from the fuel pump.
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How Does The Fuel Tank Pressure Sensor Work ?
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The fuel pressure sensor senses the internal pressure of the rail to measure the quantity of fuel remains in the fuel rail.
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The data then transfored to power train control module (PCM) to calculate and release the exact amount
of fuel that is required for combustion.
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What Are The Symptoms Of Fuel Pressure Sensor Failure?
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When fuel pressure sensor fails, it exhibits several
symptoms like
1. Engine stalls
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:- Black smoke emitting from tail pipe
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:- Leaking gasoline from tail pipe
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:- Vehicle starting problem
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:- Vehicle runs rough with engine noise.
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How To Find out the problem?
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While the engine is getting scanned for any problem,
it will show an error code, if the fuel pressure sensor
is faulty.
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If there is a problem with the sensor make sure to replace it
instead of repairing it.
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Always make sure to find the exact configuration of a
sensor while replacing. If it won't match, it'll not perform as
expected.
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Tips:- The Fuel pressure sensors always come with an identification number. So make sure to find the exact
one while replacing it.
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As per owners' manual, you should replace the faulty sensor when the
vehicle starts to show the first symptom. That will save extra expenses
on engine as well as fuel rail.