Possible Cause And Correction

Check for water contaminated fuel.
Check fuel pressure, see CHART A6 - FUEL SYSTEM PRESSURE TEST chart in the TBI TESTS W/ CODES article in this section.
Check TPS for sticking or binding.
Check EGR operation. See EGR SYSTEM CHECK chart in the TBI TESTS W/ CODES article in this section.
On Astro, Safari, and "S" Series trucks, check fuel pump relay; connect test lamp between pump test terminal and ground. Test lamp should be on for 2 seconds following ignition on. On 7.4L engines and some 5.0L engines, the fuel module circuit activates the fuel pump for 20 seconds after ignition is turned on. If circuit is not functioning, a hot, hard start condition may result.
Check for faulty in-tank fuel pump check valve that would allow fuel to drain back into tank:
With ignition off, disconnect fuel line at filter.
Remove fuel tank filler cap and connect radiator test pump to line. Apply 15 psi (1.05 kg/cm² ) pressure. If pressure holds for 60 seconds, check valve is okay.