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-   -   Marine power 502 pfi. Looking for injectors. (https://www.offshoreonly.com/forums/general-q/368860-marine-power-502-pfi-looking-injectors.html)

AllDodge 10-09-2020 07:46 AM

PFI and MPI is same thing but different name

I would send the injectors to Artic Friends as SB mentioned

AllDodge 10-09-2020 07:50 AM

Found these and would check with Holley but they look right

https://www.holley.com/products/fuel.../parts/522-361

Dimmkaa 10-09-2020 08:00 AM


Originally Posted by AllDodge (Post 4760904)
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😉

Dimmkaa 10-09-2020 08:03 AM


Originally Posted by AllDodge (Post 4760906)
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?

SB 10-09-2020 08:17 AM


Originally Posted by Dimmkaa (Post 4760900)
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 😳"​



https://cimg4.ibsrv.net/gimg/www.off...02f12a9da2.jpg

AZ Speed is still around.

AllDodge 10-09-2020 08:18 AM


Originally Posted by Dimmkaa (Post 4760910)

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)

Dimmkaa 10-09-2020 08:26 AM


Originally Posted by AllDodge (Post 4760914)
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

mike tkach 10-09-2020 08:40 AM

call marine power for information.

Dimmkaa 10-09-2020 09:15 AM


Originally Posted by mike tkach (Post 4760918)
call marine power for information.

Mailing them few times, no answer.

Anyway, thanks for idea!

92nsx 10-09-2020 12:23 PM

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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