Standalone ECU for 3rd gen UK 3SGE with turbo Options

[FunkySR]

Hi guys. I'm in the process of planning a turbo conversion for my 1998 ST202 with 3SGE.

I'm thinking of ECU solutions and I don't really fancy the FIC this time round.

Question is is there an AEM EMS that I can modify to use? What do you guys think of the new AEM EMS4 universal ECU?

I have searched till the cows come home and no getting anything for the 3S.

Thanks,
J

[Smaay]

you are asking good questions but those of inexperience.

1. yes if you go EMS-4 it will replace your stock ECU. you will use the stock harness and make a patch harness that will plug into the stock plugs and then the EMS

2. no point in changing to 3S-GTE. im not 100% sure but lets take the 5S and 3S-GTE for example, they are very similar but very different it terms of ignition and how the ECU interprets signals. Im going to assume that the 3S-GE and 3S-GTE speak different languages.

3. how different are the plugs for your ECU. the 5S and 3S-GTE share the same ECU plugs. in fact those same plugs are on several different cars. post a pic of your plugs. Megasquirt is afine ECU, i have never used one but i havent heard much bad about them. I dont see any reason you couldnt get a hold of a set of ECU plugs and pin them for the MS. their excuse is lame in my book.