Test Dr-17A - Testing Fuel Pressure

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

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION . For appropriate wiring diagram, see WIRING DIAGRAMS .

Turn ignition switch to OFF position. Disconnect fuel pump connector at fuel tank. Crank engine for 10 seconds. Turn ignition switch to OFF position. Disconnect negative battery cable.
WARNING: High fuel pressure may be present in fuel lines. Open fuel system carefully. See FUEL PRESSURE RELEASE .
Connect fuel pressure gauge and adapter to fuel rail. Reconnect negative battery cable. Connect jumper wire between positive battery terminal and fuel pump check terminal. See Figure. Check for fuel leaks.
If no fuel leaks exist, disconnect jumper wire from fuel pump check terminal. Start engine, and let it idle. Disconnect and plug fuel pressure regulator vacuum hose. Fuel pressure should be 47-50 psi (3.3-3.5 kg/cm² ). If fuel pressure is not within specification, repair as required. Perform TEST VER-2 .
If fuel pressure is within specification, reconnect vacuum hose to fuel pressure regulator. With vacuum hose connected, fuel pressure should be 37-39 psi (2.6-2.7 kg/cm² ). If fuel pressure is not within specification, repair as required. Perform TEST VER-2. If fuel pressure is within specification, perform TEST DR-18A.