Re: MEFI-3 or MEFI-4?
 

There telling me when you order a 3 your get a 4 with a adapter harness.There going to be outrages for merc.

They have already started putting the 4's on the procharger and whipple set up.It should not be hard to find a stock map.

If ya find a 3 its going to have to be remapped anyway.

There is also 2 different #3's

Ck with Mark at Precision Marine in La 504-469-7463 his is having the harness made for them also.

Rob :drink:

Re: MEFI-3 or MEFI-4?
 

I'm pretty sure I have at least a couple of mefi 3's and can flash them for whatever stock program you need. $500 each including the old ones as trade in. Contact me at [email protected] if you'd like.

Re: MEFI-3 or MEFI-4?
 

I called Mark today to discuss this. He said that he should be able to help but he believed that there was a slight software difference between the outdrive model and inboard model. I also called a Mercury dealer like cobra marty and outdrive man said and he gave me the MEFI-4 update kit part numbers for these engines. I assume the updated ECM's will have the proper maps already flashed into them. The only question now is at what price? :eek:

Re: MEFI-3 or MEFI-4?
 

Maghag, Did you ever sort out your ECU problem? Is there a physical difference between the MEFI3 and the MEFI4? Do you still have your bad MEFI3 boxes? I might be interested. Thanks, Marty.

Re: MEFI-3 or MEFI-4?
 

No External Physical Differance Just The J-1 And J-2 Connectors Are Pinned Differently. More Than A few hundred Per Kit Is Highway Robery Merc Reman Sells These Kits Very Cheap as far as boat parts go

Re: MEFI-3 or MEFI-4?
 

Are the J1 and J2 connectors the same? How many pin are they?

Re: MEFI-3 or MEFI-4?
 

ttt

talked to Mark today at Precision Marine and was very impressed with his advice and honesty! Make sure to check them out!!