Pulsation Damper

Although fuel pressure is maintained at a constant value by the pressure regulator, the pulsing of the injectors causes minor fluctuations in rail pressure. The pulsation damper acts as an accumulator to smooth out these pulsations, ensuring accurate fuel metering.

The fuel pulsation damper is not used on all engines but can be used as a fuel pressure quick check on those engines which it is used. Noting the diaphragm, when pressure is present, the bolt head in the center of the diaphragm extends out flush with the top of the damper case.

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    What is a pulsation damper in a Toyota Camry?
    1 year ago

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