A Fuelish Question

[mustangman]

I was driving around town the other day, and the car (94 Mustang), just quit running, for no reason at all. It was like the fuel was shut off some how. I let the car sit for a couple of hours, and it started with no problem at all. So I'm thinking my fuel pump has just about had it, and am getting ready to replace it. What I was wondering is, if I replace it with a high volume pump now, while I'm still running with the tired old stock motor, will it cause any problems, like too much fuel, (flooding the motor), or maybe it will damage the pump, by pumping harder than it needs to for a stock motor. I have plans to change the motor for something that will use a high volume pump, but that won't be happening for at least a year or two.

[stang_racer20]

On a return style fuel system you can run just about as big of a fuel pump as you want. It wont hurt anything. I'd recommend an adjustable fpr though and perhaps a fp gauge for monitoring and adjustments.

Do the sn-95's still use a tfi module? If so that could be worth checking into.

[HiFlow5 0]

Originally Posted by stang_racer20

Do the sn-95's still use a tfi module? If so that could be worth checking into.

Yup, at least on the 94/95 5.0's. Sounds like the famous TFI module to me.

[mustangman]

Originally Posted by HiFlow5 0

Yup, at least on the 94/95 5.0's. Sounds like the famous TFI module to me.

My brother, who knows a little more about cars than I do, thought it might be that, but couldn't find it. He said it should be right under the distributor, But he was talking about fox bodys I think. Could it possibly be in a different place on my car? I also have a Haynes repair manual for it, but it doesn't say anything at all about a TFI module so I kinda assumed that they had done away with them on my car.

[HiFlow5 0]

The TFI is located right on the side of the distributor. Since you still have a 5 liter pushrod motor, its the same.

[mustangman]

Is this thing my TFI module?

[stang_racer20]

It kinda looks like a possible TFI, but the photo says it the ignition module. I thought that ford liked to keep them on the steering column though, hmmm. I just finished putting a 302 in a 94 f-150 at work yesterday and there was no TFI on the distributor on that either, allthough it still had the mounting surface for one. I guess, apparantely Ford realized how close it came to the thermostat housing, which was the main cause fo the TFI failures, and finally moved it. The TFI on that truck was mounted near the firewall on the driver side fender. Go to your local Ford dealer and have them print you out a picture if available.

[mustangman]

Well the reason I thought this might be the TFI module is because the SPOUT connector is there also.


I posted this picture in the where's the spout connecter?
thread as well, but I noticed that you said that it was just under the TFI in that thread. So i thought maybe if they moved the TFI, this SPOUT connector might be near it. The thing is my Haynes manual only refers to it as an ignition module and makes no reference to a TFI module at all. Here's another dumbass question though, what does TFI stand for?

[stang_racer20]

Well I'd be willing to bet that thats the TFI then. It stand for Thick Film Ignition module so I guess its "an" ignition module.

[HiFlow5 0]

Hum, interesting how little things vary, thats a weird spot for them.