Checking Fuel Pressure

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

Using scan tool, stop fuel system actuation. Release fuel pressure. Remove fuel pressure gauge from fuel rail. Reconnect fuel supply line. If vehicle is a FJ22 body, go to step 3). If vehicle is a JA body, remove fuel return line between fuel tank and fuel filter.
Adjust shop air to 40 psi (2.8 kg/cm² ). Using shop air, attempt to blow air through fuel return line. If fuel return line is restricted, replace fuel return line. Perform TEST VER-2. If fuel return line is not restricted, replace fuel pressure regulator. Perform TEST VER-2 .
Inspect fuel return line for kinks or restrictions. Repair fuel return line as necessary. Perform TEST VER-2. If no kinked or restricted lines exist, disconnect fuel return line at fuel rail. Connect one end of a hose to fuel rail nipple in place of fuel return line.
Put other end of hose into an approved 2 gallon container. Turn ignition on. Using scan tool, actuate fuel system. Observe fuel pressure gauge. If pressure is more than 53 psi (3.7 kg/cm² ), release fuel pressure. Replace fuel pressure regulator. Perform TEST VER-2. If pressure is less than 53 psi (3.7 kg/cm² ), go to next step.
Turn ignition off. Reconnect fuel return line to fuel rail. Disconnect fuel return line at fuel tank. Put end of disconnected fuel hose into an approved 2 gallon container. Using scan tool, actuate fuel system. Observe fuel pressure gauge. If fuel pressure is more than 53 psi (3.7 kg/cm² ), release fuel pressure. Repair fuel return line for kinks or restrictions. Perform TEST VER-2 . If fuel pressure is less than 53 psi (3.7 kg/cm² ), release fuel pressure. Repair or replace fuel tank inlet strainer for a restriction. Perform TEST VER-2.