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Home >> Mazda >> 2002 >> MPV ES >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Fuel System >> Fuel Delivery >> Pressure Regulator Control Solenoid

Pressure Regulator Control Solenoid

The Pressure Regulator Control (PRC) system includes a solenoid connected with a vacuum line to the fuel pressure regulator. During hot engine restarts, the PCM energizes the PRC solenoid. This prevents intake manifold vacuum from going to the fuel pressure regulator and increases fuel pressure about 8 psi (0.6 kg/cm2 ).