Hard starting when motor warmed up

[justin91lx]

I know you need bigger plug wires with these hot coils also. 9mm

Yep, running 9mm ford racing wires

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[justin91lx]

Notice the old coil I pulled off is a bwd professional series coil. Gonna put it back on and see how it goes

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[justin91lx]

Ok I put the old coil pack on and still does the same thing. What's the next thing I should check?

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[bird_dog0347]

hmmm, stock coil, dist, starter and hot starts are sometimes harder on my '92 till I give it gas like it has a carb (it's EFI)... I guess I should buy a new TFI and keep in the glove box?

[Denny]

Like I said, TFI.

[justin91lx]

Like I said, TFI.

It has a new tfi on it. That's what I originally thought it was.

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[Denny]

Bad TFIs have been sold before.

[justin91lx]

Bad TFIs have been sold before.

Tfi can be tested right?

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[svauto-erotic855]

Replace the PIP when even you replace the TFI module.

[justin91lx]

Alright I decided to just retire my 26 year old distributor and picked up a msd billet pro. Got it set back to 14* as the old distributor. Car starts up every time now. New problem now. When she is idling she would just stall and fuel pump still be going. Seems like I fix one thing and a new problem comes up. Any ideas?

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[Denny]

Alright I decided to just retire my 26 year old distributor and picked up a msd billet pro. Got it set back to 14* as the old distributor. Car starts up every time now. New problem now. When she is idling she would just stall and fuel pump still be going. Seems like I fix one thing and a new problem comes up. Any ideas?

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Injector stuck open? Damn them 5 liter, money eaters!

[justin91lx]

Injector stuck open? Damn them 5 liter, money eaters!

I know right. I tested for that before putting the new distributor in. Pressure held. No quick bleed off.

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[greenbullitt]

Monitor power to the coil and distributor when this is happening, justin

[justin91lx]

Monitor power to the coil and distributor when this is happening, justin

What would be the best and safe way to do this?

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[greenbullitt]

Test light to power leads. Coil will be red/green for power. I'd have to look up tfi, I don't recall off hand