adapting a EJ20g Robtune to a 1993 SS

[xbmxxx]

I am going over this thread reading about ignition converters

http://bbs.legacycentral.org/viewtopic.php?f=19&t=47252

However, I have a JDM 20G intake manifold complete with the COP ignition. Will this intake plug in to my harness and not need an ignition converter?

[Legacy777]

To my knowledge the stock SS wiring harness does not have the extra wires for the COP setup. You also need a four channel igniter and would need to run two extra wires from the ECU to the igniter, and then run the wiring from the igniter to the COP.

[wtdash]

Hi,
Get the Ignition converter from Rob and you can run either an EJ22T or EJ20G ECU, per Rob. And you'll need the matching parts for the ECU - injectors, MAF, etc. and make the minor wiring changes (noted in my Thread) if it's the EJ20G ECU.

But you don't need the extra COP wiring or igniters.

TD

[robertpaige]

Rob's converter is honestly the cleanest way to go.

[James614]

I did the COP conversion, and while it wasn't that hard, if I did it again I'd go with the ignition converter honestly.

If you do want to run COP, I'd strongly recommend getting 02-05 WRX coil packs which allow you to bypass the ignitor entirely. This is actually much easier than trying to tie the stock 4ch ignitor into the system without a complete harness. Hell, I had a complete harness and and t was still easier to run the GD coils.

[jessman1942]

I did the COP conversion, and while it wasn't that hard, if I did it again I'd go with the ignition converter honestly.

If you do want to run COP, I'd strongly recommend getting 02-05 WRX coil packs which allow you to bypass the ignitor entirely. This is actually much easier than trying to tie the stock 4ch ignitor into the system without a complete harness. Hell, I had a complete harness and and t was still easier to run the GD coils.

is their a guide to this conversion anywhere using GD coils?

[James614]

Here's Rob's writeup explaining how to do it on his Impreza RS with an EJ20G swap:
http://forums.nasioc.com/forums/showthr ... ?t=1192028

EDIT: Kimo wrote a very good writeup that's specific to our cars: http://bbs.legacycentral.org/viewtopic.php?f=19&t=53990