MEFI-3 or MEFI-4?
08-10-2005, 06:47 PM
#11
VIP Member
Re: MEFI-3 or MEFI-4?
Originally Posted by outdrive man
i am a mercury dealer, get the serial numbers off your engines call your mercury dealer and he can get you mefi 4 update kits. or he can get you mefi 3 remans if still avalible. the reason they did away with mefi 3 is because gm wouldn`t make them anymore
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
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08-10-2005, 07:57 PM
#12
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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.
Last edited by RichardCranium572; 08-10-2005 at 08:00 PM.
08-10-2005, 08:16 PM
#13
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Join Date: Jul 2005
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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? 
10-03-2005, 01:33 PM
#14
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.
10-04-2005, 12:02 AM
#15
Registered
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
