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Marine power 502 pfi. Looking for injectors.

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Old 10-09-2020 | 07:46 AM
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PFI and MPI is same thing but different name

I would send the injectors to Artic Friends as SB mentioned
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Old 10-09-2020 | 07:50 AM
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Found these and would check with Holley but they look right

https://www.holley.com/products/fuel.../parts/522-361
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Old 10-09-2020 | 08:00 AM
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Originally Posted by AllDodge
PFI and MPI is same thing but different name

I would send the injectors to Artic Friends as SB mentioned

Thank you! If won't find new injectors, will try to restore old ones. Old ones work from 2002😉
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Old 10-09-2020 | 08:03 AM
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Originally Posted by AllDodge
Found these and would check with Holley but they look right

https://www.holley.com/products/fuel.../parts/522-361
Thank you so much. I'll try to contact Holley.

You think efi and mpi/ pfi the same?

Last edited by Dimmkaa; 10-09-2020 at 08:05 AM.
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Old 10-09-2020 | 08:17 AM
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Originally Posted by Dimmkaa
Thank you. Unfortunately, not from US(

it is great idea about injectors remanufacturing.

Already downloaded.

but it is mpi, not pfi.

Do you think it is the same?

Another problem - 0730500 no longer available 😳"​



AZ Speed is still around.
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Old 10-09-2020 | 08:18 AM
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Originally Posted by Dimmkaa

You think efi and mpi/ pfi the same?
I see pfi (ported fuel injection)and mpi (multi port injection) as the same thing, just different names

efi is electronic fuel injection which covers mpi, pfi and TBI (throttle body injection)
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Old 10-09-2020 | 08:26 AM
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Originally Posted by AllDodge
I see pfi (ported fuel injection)and mpi (multi port injection) as the same thing, just different names

efi is electronic fuel injection which covers mpi, pfi and TBI (throttle body injection)
Sounds reasonable, thank you
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Old 10-09-2020 | 08:40 AM
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call marine power for information.
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Old 10-09-2020 | 09:15 AM
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Originally Posted by mike tkach
call marine power for information.
Mailing them few times, no answer.

Anyway, thanks for idea!
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Old 10-09-2020 | 12:23 PM
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Those injectors look just like the ones found on a Mercury racing 500 EFI. Even has the same clip to hold them to the fuel rail.
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