Fuel Pressure: Odyssey

Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE . Remove fuel pulsation damper. Connect Fuel Pressure Gauge (07406-004000A) and Fuel Pressure Gauge Adapter (07VAJ-0040100) to fuel rail where fuel pulsation damper was mounted. Reconnect negative battery terminal. Disconnect vacuum hose from fuel pressure regulator and pinch line closed. Start engine and allow to idle. If engine starts, go to next step. If engine does not start, check operation of fuel pump. See FUEL PUMP OPERATION .
Read fuel pressure. See FUEL PRESSURE table. If engine starts and fuel pressure is as specified, go to next step. If engine starts and fuel pressure is not as specified, go to step 4.
With engine idling, release and reconnect vacuum hose to fuel pressure regulator. Read fuel pressure. See FUEL PRESSURE table. If fuel pressure is as specified, fuel system is okay at this time. If pressure is not as specified, go to next step.
With engine idling, disconnect vacuum hose from pressure regulator again. Pressure should rise when hose is disconnected. If pressure did not rise, replace fuel pressure regulator. If pressure rose, but readings were lower than specified, check for clogged fuel filter or fuel line leakage. If pressure rose, but readings were higher than specified, check for pinched or clogged fuel return hose.
Relieve fuel pressure and remove gauge. Reconnect vacuum hose on pressure regulator. Reinstall fuel pulsation damper using NEW copper washers and tighten to 16 ft. lbs. (22 N.m). Start engine and check for leaks.

FUEL PRESSURE

Application		At Idle psi (kg/cm² )
Accord & S2000
Vacuum Hose Disconnected & Pinched		47-54 (3.3-3.8)
Vacuum Hose Connected		38-46 (2.7-3.2)
Civic		40-47 (2.8-3.3)
CR-V & Prelude
Vacuum Hose Disconnected & Pinched		40-47 (2.8-3.3)
Vacuum Hose Connected		31-38 (2.2-2.7)
Insight
Vacuum Hose Disconnected & Pinched		40-47 (2.8-3.3)
Vacuum Hose Connected		30-37 (2.1-2.6)
Odyssey
Vacuum Hose Disconnected & Pinched		43-50 (3.0-3.5)
Vacuum Hose Connected		36-43 (2.5-3.0)