MustangWorks.com : Ford Forums - View Single Post - ok last question about NOS please help!!!!

1jimmy__d · 09-22-2002, 09:13 PM

i know it has adequate fuel pressure b/c i had it tested b4 when the NOS wasnt working (turned out to be the plugs). I dont remember the numbers, but I posted them and people said that it was adequete fuel pressure.

How do i test the FP safety switch? Isnt there a way to adjust the FPSS with an allen wrench? If there is, which way should i turn the screw?

IF I find out that it is still good, maybe for some reason the fuel pump is not supp;lying enough pressure. OH yeah, when testing it manually, I connected the wires to the pressure switch and tested it again, (it sprayed juice). maybe ill bypass the FPSS and hope it fires the motor so i can get a new one for next year! Just Kidding

Thanks for all replies- This is frustrating, it has only worked a few times and only ONCE at the track b4 not working again!

09-22-2002, 09:13 PM	#3
1jimmy__d Registered Member Join Date: Apr 2002 Posts: 299	i know it has adequate fuel pressure b/c i had it tested b4 when the NOS wasnt working (turned out to be the plugs). I dont remember the numbers, but I posted them and people said that it was adequete fuel pressure. How do i test the FP safety switch? Isnt there a way to adjust the FPSS with an allen wrench? If there is, which way should i turn the screw? IF I find out that it is still good, maybe for some reason the fuel pump is not supp;lying enough pressure. OH yeah, when testing it manually, I connected the wires to the pressure switch and tested it again, (it sprayed juice). maybe ill bypass the FPSS and hope it fires the motor so i can get a new one for next year! Just Kidding Thanks for all replies- This is frustrating, it has only worked a few times and only ONCE at the track b4 not working again! __________________ 90 lx hatch, holley systemax II kit, rebuilt 302, BBK 155 lph fuel pump, pro M bullet mass meter wtih BBk cold air intake, 30 # injectors, 70 mm TB, jacobs ignition system, edelbrock water pump, BBk longtube headers with h-pipe, flowmasters, b&m ripper shifter, 3.55 gears, Proform electric fan, subframe connectors/removed smog pump and ac! 75 shot of nitrous! 13.2 at 112 1/4 mile- no traction!