Hello fellow gearheads!

[Jetmutant]

Hi,
Found this from links on the IH8MUD.com forum. Good stuff there, and it looks like there is great stuff here also. My project is a "78 FJ 40 with stock 2F + header, It followed me home with a Weber 32/36 carb on. So, instead of monkeying around wasting money I want to put a TBI system on it. I have the information from The guy who used to run Downey off-road on doing this conversion. I have collected most of the parts from the "yard" and I even have a .bin file that was posted on MUD. I do have a lot of questions for the gurus here I have a ECM 1227137 with FJD chip in, should I get a 1227747 ECM or just keep the one I have? The Downey guy says that the 1227747 for 4.3 V6 and auto trans works good but it would seem to me the V6 have different needs than a inline 6 tractor engine?

[EagleMark]

[steveo]

as far as the ecm goes, "engine needs" are the same, some amount of air in, mix fuel with it, sparky sparky.

you can use pretty much any tbi ecm with pretty much any tbi engine, especially if you're just talking a 2 injector standard configuration with a static pressure fuel regulator.

they all have enough range of adjustment (in various ways) to run anything from a single cylinder engine to a gigantic bigblock.. it's the high revving engines you have to worry about, some of the simpler tbi ecms only have tables up to pretty low RPM, so in your case, i think any one of them would do

there are some features like electric fan control or whatever that some ECMs have and some dont, but again in your application, doesn't matter

so in short keep what you have

also welcome