Test NTC-3B - Checking Fuel Pressure

WARNING: This page is about a different car, the 1994 Plymouth Sundance and 1994 Dodge Shadow. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: High fuel pressure may be present in fuel lines. Open fuel system with caution. See FUEL PRESSURE RELEASE .

Using DRB, stop fuel system actuation. Release fuel pressure. Ensure fuel tank is at least 1/4 full before performing following test. Install fuel pressure gauge and adapter between fuel tank and filter at rear of vehicle.

Remove fuel return line from fuel pump at fuel tank. Connect Fuel Pressure Test Adapter (6541) to fuel return line. Place other end of adapter hose into an approved 2-gallon gasoline can. Turn ignition on. Using DRB, actuate fuel system. Observe fuel pressure gauge. See FUEL PRESSURE SPECIFICATIONS table.

FUEL PRESSURE SPECIFICATIONS

Application	psi (kg/cm² )
Without Flexible Fuel	34-44 (2.4-3.1)

If fuel pressure is within specification, repair fuel return line for a restriction at fuel tank. Perform TEST VER-2 . If fuel pressure is not within specification, stop actuation test. Turn ignition off. Reconnect fuel return line to fuel tank.
On TBI vehicles, disconnect fuel return line at throttle body.
Place other end of adapter hose into an approved 2-gallon gasoline can. Turn ignition on. Using DRB, actuate fuel system. Observe fuel pressure gauge. See FUEL PRESSURE SPECIFICATIONS table.
If fuel pressure is within specification, repair fuel return line for a restriction to the fuel tank. Perform TEST VER-2. If fuel pressure is not within specification, stop actuation test. Turn ignition off. Replace fuel pressure regulator. On TBI vehicles, reconnect fuel return line to throttle body.