H4 - Fuel Delivery Test
- Key "OFF".
- Fuel pressure gauge installed.
- Pressurize fuel system per step H2.
- Locate and disconnect the Inertia Fuel Shutoff (IFS) switch.
- Crank engine for five seconds.
- Does pressure drop more than 5 psi (34 kPa) by the end of the five second crank cycle?
Yes -- The EEC system is not the cause of the no start. Remove the fuel pressure gauge. Reconnect the IFS switch. Refer to Diagnostic Routines for further diagnosis.
No -- Remove fuel pressure gauge. Reconnect IFS switch. Go to H8. H8 - Check Resistance of Injector(s) and Harness SFI Engines