1993 Ford F150 XLT 5.8L Crank but no start after changing Fuel Pressure Regulator

Make sure battery has a full charge and connections all good. I don't care if the cel is on or not, can you check for applicable trouble codes? Around here some of the national brand auto stores will loan out a fuel pressure gage. You may have to put up deposit, but, you get it back when you bring the gage back. fuel pressure, 35--45 psi, so if it is right in the middle, should be fine. Visually check for spark at all the plugs. Check ignition timing. What about cylinder compression? Proper fuel--air--spark--timing.

I doubt your fuel pressure reg had anything to do with it. it has NOTHING to do with spark and start. you just bought it and therefore it's always a good thing to replace everything right away!! Fluid/ filters and plugs /wires. gap is most likely .044 ( I have a 96 with a 5.8L) and that is my gap. get you a deep sock set ( always at a pawn shop) of 5/8 and a universal joint 38 drive. ALWAYS put non stick on your plugs. My fire order is 13726548, that might work on yours too, call a dealer and ask them with your given VIN. Double check your plug wires to see that they are in synch with F O. Also, check your grounds.. on the battery AND from the battery to the fender and motor to firewall good luck