mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Fuel Pressure Regulator > < Fuel Pressure Control Solenoid|Specifications|Page 4036
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Fuel Pressure Control Solenoid: Description and Operation

Pressure Regulator Control System

PURPOSE

Temporarily raise fuel pressure to prevent vapor lock (fuel percolation) and improve idle quality during hot restart and for approximately 10
seconds after start.

LOCATION

PRC solenoid is on right side of intake manifold.

OPERATION

When PCME detects hot start conditions (see image), it cuts vacuum to fuel pressure regulator through control of the PRC solenoid, increasing 
fuel pressure.

Fuel Pressure Regulator > < Fuel Pressure Control Solenoid|Specifications|Page 4036