91LXVertSleeper

hey yall i guessI am an idiot now cuzI have no idea what my car is doing. wellmy stang has a mind of its own. I have been having problems with the car wanting to start. i have changed a few parts that i thought was wrong: Fuel pump and filter, fuel pressure regulator, plugs and wires, mass air flow sensor, IAC sensor, and ignition coil. Ive talked to a few buddies down here in Jacksonville, Fl. and some of them were saying my igition control sensor might be going out so today I changed that. After i changed it i started the car and it ran like a champ so I thought all was good.Well upon driving it around the block the car tried to stall out on me. I mean like the car was driving and then the RPM's would drop but the car kept driving. It done it like 10-15 times in the 15 mins of me driving it around the block. I dont think it is bad gas because when i got to the house i turned the car off and now it wont start again. I AM TRULY FED UP WITH THE STANG but I have some loyaty to the stang and I want to get it running and keep it. If anyone has had this problem PLEASE HELP. The car isa '91 LX convertible. Thanks

92cobra

have you changed your tfi module, it sits on your distributor. Sounds like that could the be the issue to me.

edit: does it happen all the time, only when the cars cold, only when the cars hot?

91LXVertSleeper

Now it is doing it all the time. I know the car wants to crank but something wont let it. When I try to start it it does dead like instantly.

91LXVertSleeper

By the way what is a tfi module? I dont think that i have ever heard of it.

splash21

and take a look at your TPS (throttle positioning sensor) from what ive seen fords seem to have a problem with theirs. ive changed them on f x50s, escort, mustang, and even a sable