Any interest in a new mefi3? I was flashed for my 468 with 575 blower but can be reflashed by someone with mefiburn. I ended up going with an aem infinity so i no longer need it. 300 obo.

thanks,
nick

Sold!

I have another one, if anyone else is looking. Innovation 600 tune, but can be retuned, as well.

scarabman, text me or mp me if you still have the mefi. oso wont let me pm 814-823-2783 Eric

Do you have harness too?

Hi Big ballers,

My Mefi 3 is (supposed) burned and I am trying to replace by an oher one or by a new system as AEM but they haven't Wiring harness pnp. I see that succeed to do this; can I ask you how you did it?
Than you in advance.

Well originally I picked up the AEM conversion harness for MEFI4 to AEM series 3 https://www.hardin-marine.com/p-1008...-infinity.aspx but, found that I would end up hacking up the conversion harness to much so I ended up building my own which came out pretty good and doing the tuning my self. Let me know if you decide to go this route, and if you need any help.




-Nick

Thank you Nick,

It seems not so simple for me because I haven't your technical knowledge.

First I will check if my Mefi 3 is really burnt; do you know a simple to way to be sure that the ECM is powered by 12V?

Thank you

Ancion

I used this link here when I was looking at repinning. Looks like j2-1 is the battery input might want to just check for 12v there.
Michael's Tractors (Simplicity and Allis Chalmers Garden Tractors) - Mercruiser MEFI-3 ECM Delphi 16237009

-Nick

interesting to see how this works out. I'm thinking Holley....