Squirrel_Masta

87, 5.0, 5-speed, smog pump delete, underdrive pulley kit, MAF upgraded.

Car will start, rev up to about 5000 then die. I can get it to stay running after a min. or two of feathering the gas. If you try to drive it: as soon as the clutch is fully engaged it seems to stop getting gas and will die unless you go to nuetral and start feathering the gas again.

I have checked/replaced the following: plugs, plug wires, cap & rotor, coil, fuel filter, tps sensor, IAC sensor, timing is set.

Bubba 95SN

KOEO codes? Fuel pressure? Start with basic checks . More information needed.

Squirrel_Masta

KOEO codes: service codes 67 and 96. Continuous memory codes 11.

mattdel

96 (O) Fuel pump monitor circuit shows no power.


possibly faulty relay, possibly faulty inertia switch, possible bad pump. try hard wiring the pump to a key-on power source, eliminating the relay and switch, see what happens. i don't think it will work, it sounds like the pump is on its way out. sitting in fuel cools them down, so it takes a while for the pump to warm up as well.

Squirrel_Masta

i don't think it is the pump, I can sit and rev it all day long and it will stay running. i am getting plenty of gas. If anything it runs rich, when it will stay running.

Squirrel_Masta

Oh yeah problem started about a year ago, other symptoms here:

https://mustangforums.com/forum/5-0l...warmed-up.html

https://mustangforums.com/forum/5-0l...ease-help.html

Squirrel_Masta

Still need help. Anyone live in central Indiana? I will give a fixers fee to anyone who can figure this out.

mattdel

you have a fuel pump code. what is the pressure?

94stang302

Check for codes but remember you can get a bad sensor from the store I'm leaning twords tps or iac I went threw 3 iacs before I got a good one

MustangJoe101

have you taken a look at the idle air control valve? you should be able to clean it if nothing else. just google how to clean it.

I just realized that 94 stang revived this thread from 2009 lol