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Fuel Pump

REGULATED FUEL PRESSURE (1)

Application At Idle psi (kg/cm2 )
Accord, Civic & Civic Del Sol
Vacuum Hose Disconnected 40-47 (2.8-3.3)
Vacuum Hose Connected 30-38 (2.1-2.7)
Prelude
2.2L Engine (F22A1)
Vacuum Hose Disconnected 36-43 (2.5-3.0)
Vacuum Hose Connected 28-35 (2.0-2.5)
2.2L Engine (H22A1)
Vacuum Hose Disconnected 33-40 (2.3-2.8)
Vacuum Hose Connected 25-32 (1.8-2.3)
2.3L Engine (H23A1)
Vacuum Hose Disconnected 36-43 (2.5-3.0)
Vacuum Hose Connected 28-35 (2.0-2.5)
(1) Measure regulated fuel pressure with vacuum hose connected and disconnected from pressure regulator.