MSefi.com read only forum (Jan.15,2018)

Hello dear forum. My name is Jim and i'm from Greece. I think have some experience on mechanics but i know only basic things about edis, electricals ,ecu's and all that useful things.I own a Mercedes 190e 2.0 8v . I decided to try Megasquirt to my car in order to get a better drive experience and reduce fuel consumption. I think i have read mostly all articles about Ms and I decided to buy MS 2 and use EDIS 4 (i think i know how edis works ;) ) . I found only Megasquirt II PCB3.0 but can i use it with edis4 ? If yes what must i do with MS board(must i jump anything?) ? If i buy also relay board how will i connect the wires to Edis? I must buy wiring harness if i buy relay board? Also i have read for lots of diffrent versions of MS 2. Which version will fit best with edis and four simple fuel injectors? Sorry for all that questions but this week im reading for 6 hours every day to search for all this i questioned you. I will upload some photos of my babe benz. Thienks jim

Welcome Jim!

There are many experts on this forum, among which I am not, but perhaps I can be of some help.

As you described your project, I would say that MS2 v.3+EDIS4 will meet your needs. I would also point out a couple of things:

I suspect you already know that you will need a 36-1 crank wheel to trigger the EDIS module..... (not mentioned in your post)
There only 2 wires required between MS and EDIS (PIP and SAW) which makes the connection very easy.
You will need a wiring loom, which you can build yourself, or purchase assembled.

Now, for my personal preference, which you are not expected to follow!
I have used the relay board on at least one of my projects and didn't care for it. I found it just as easy to purchase an 8' pre-made loom from DIYAutoTune and wire MS directly to my injectors, ignition etc.

I hope that helps a little.

Ken

Any opinion is gold for me. ;) I know that i need trigger wheel ;) I have already plan how to install it to my car. The only thing i dont know about this section is if MS use the same Vr sensor with edis. Also if i use relay board will i need to buy wiring loop (beacause wiring hold up with screws). ? Also thienks for the time you wasted for me jim

Thank you Kjones I really appreciate your opinion. I know that i need trigger wheel. I have read most of the manuals until i get ms to my hands .... i cant do much. I just dont know silly thing like if i need different vr sensor for ms and edis if i need another o2 sensor ( i have with tree wires) and other details (off topic i think).

Here is a page from the manual that should help with most of your questions about wiring EDIS.

http://www.megamanual.com/ms2/EDIS.htm

Ken

There are not really different versions of MS2 V3 - just different configurations. There is a difference between the V3 and V3.57 - the first uses through hole components so can be home built - the latter surface mount so machine made. The V3 is IMHO a better bet as it is easier to work on.

You could do your conversion in stages - start fuel only, then add EDIS when you're happy with that. Helps keep any problems more manageable.

Thank you for your replies. I think i will not do my conversion in stages I will post tomorrow a new post about my work for you to see. For now i will read once again every manual about ms .