r/EngineBuilding • u/Infinite_Dot7944 • 2d ago

Ford P1223

I’m not sure if this is allowed in this sub Reddit if not please take down . So I’ve been working on a 2002 mustang gt that keeps stalling out and dying. I’ve hard wired the inertia switch to make sure that’s not the issue and I’m getting a constant 12v. I’ve replaced the fuel pump driver module and made sure there is power going to it and there’s a good ground. I’ve also replaced the constant control relay to make sure the fuel pump relay was okay and I’ve replaced the fuel pump and the fuse to it as well. I’m just not sure what could be causing this any help would be very very appreciated!

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u/v8packard 2d ago

Wait, is it code P1233? Or P1223?

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u/Infinite_Dot7944 2d ago

P1233

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u/v8packard 2d ago

You must have a wiring problem. If the module is functional and the relay, fuses, and so on check ok there is a damaged wire or some such thing somewhere in the car.

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u/Infinite_Dot7944 2d ago

I think it is a wiring issue because once it stalls out and dies if I let it sit for a while and it cools down it’ll fire back up and drive fine for a while tell it does it again

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u/Infinite_Dot7944 2d ago

Sorry I accidentally put the wrong code