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Fuel Pump

WARNING: This page is about a different car, the 1993 Honda Prelude, 1993 Honda Civic del Sol, 1993 Honda Civic, and 1993 Honda Accord. However, it is still accessible from the selected car via links, so may be relevant.
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.