Two Re programed Merc 500 EFI ECM'S for sale
05-11-2010 | 06:02 PM
#11
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Joined: Feb 2005
Posts: 4,333
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From: USA
I have the same ECMs. I was asking because I want a pair of MEFI4B's & these are not 4b's.
They are 3's which I have. The tune or program on them is of no concern to me. I'll wipe it out & do my own, which is what we did on the computers I have now.
This same Delphi number ECM is used on TONS of stuff from GM crate engines to Mercruiser & Volvo powerplants. They are not anything "special" as just the ECM.
As far as the 4 mph gain. I suppose if all the stars aligned properly it could be possible. Merc sets their stuff up on the rich side so by leaning it out & raising the rev limiter it is in the cards.
They are 3's which I have. The tune or program on them is of no concern to me. I'll wipe it out & do my own, which is what we did on the computers I have now.
This same Delphi number ECM is used on TONS of stuff from GM crate engines to Mercruiser & Volvo powerplants. They are not anything "special" as just the ECM.
As far as the 4 mph gain. I suppose if all the stars aligned properly it could be possible. Merc sets their stuff up on the rich side so by leaning it out & raising the rev limiter it is in the cards.
