What ECU's are you guys using in pre 97 TT to single T conversions

[marc]

As title states ;D. What ECUs does everyone seem to be using? I know all use v3/4 sti ones when converting EJ20R lagacys but what about the earlier ones say 94???? I dont play with the earlyr lagacys that much but Im trying to help out a m8 who is new to the subaru scene . Thanks

[mattapo]

as stated in all the single conversion how to threads, early ones need a complete repin

[kamineko]

early '93 bg5a, i still plan to use the 1S ver3 ecu. if it holds up i will swap in a 6S for giggles.

but yeah, ditto to above. i've made an adaptor but also requires wirings mods. don't ask what, i'm not there yet haha

[Ninja8)]

sh!t..there goes a nice little autotronics mission for u marc

[gazzy2000]

the repinning of a 4 plug to a WRX STi 3 plug is not bad to do at all, the pins are so farkin easy to take out its not funny.

You Definitely need the RIGHT diagrams (plenty around here) and its made easier if you use a v3/4 engine loom too (but not essential)

BUT, i do suggest in no way should you attempt it if you have zero technical or electrical apptitude.

One area i found to be fundamental was getting the earths 100% correct at the ECU i.e. the BG5 earthing system is a little different to the v3/4 WRX layout.

Luckily i had a entire v3/4 loom to work with for testing & comparing Etc.

For my BG5 TT to ST conversion i cut all the plugs and started again, used a 1S v3/4 ECU.

[marc]

 gazzy2000 said:

the repinning of a 4 plug to a WRX STi 3 plug is not bad to do at all, the pins are so farkin easy to take out its not funny.

You Definitely need the RIGHT diagrams (plenty around here) and its made easier if you use a v3/4 engine loom too (but not essential)

BUT, i do suggest in no way should you attempt it if you have zero technical or electrical apptitude. One area i found to be fundamental was getting the earths 100% correct at the ECU i.e. the BG5 earthing system is a little different to the v3/4 WRX layout.

Luckily i had a entire v3/4 loom to work with for testing & comparing Etc.

For my BG5 TT to ST conversion i cut all the plugs and started again, used a 1S v3/4 ECU.

Lol ill be fine all day every day in this department so no worries there. Just after the least effort to help him out as he wont wna pay much if anything so I cant be bothered sitting there with an iron,solder shrink tube, 2 pinout diagrams and a sore head from all the flux smoke from a few hours soldering lol. Thanks guys. Had spoken with afew about the v1/2 wrx ecu repin idea but thought some1 must have used a v3/4 ecu that way we could use yellows without chipping the ecu ect. Anyway thanks once again .

[gazzy2000]

no worries.

oh FYI, mine is a 95 BG GT (was a 4 plug) i had a 94 here too and it was a 4 plug aswell, both of which the plugs plugged stright into a v3/4 ECU (meaning the plugs fitted physically but the pins were all farked up)

[Leighos]

I have successfully made two BD/BG5a to v3/v4 adapters (and converted my own car), they are totally plug and play, and depending on what coil configuration you use, it wont require any rework to the loom.

PM me if you need help or want an adapter making.

[kamineko]

is the auto loom no different? my loom mods are to accommodate the MT swap. well. i'm almost at the point of finding out

[gazzy2000]

 kamineko said:

is the auto loom no different? my loom mods are to accommodate the MT swap. well. i'm almost at the point of finding out

if it helps, i lent an auto BG5 4 plug ECU to a garage to use in a 4 plug manual TT BG legacy and it was fine.. no codes etc

but yea, thats interesting really, coz what about the manual position switch etc

plus Nick, where are your pics of the green beast?

[kamineko]

the ecu itself is interchangable, there is a pin which tells the ecu if AT/MT

http://www.clubsub.org.nz/forum/index.php/topic,17625.0.html