So I'm in the process of my build, and have gotten my hands on an ~'02 inlet manifold (better flow apparently, top feed squirters, etc), and have done ahead and removed the risers, deleted the tgvs, and now that I pay a bit closer attention, the loom is my next challenge. Has anyone done this conversion themselves, or know of a build link for this at all? I've had a gander and can't seem to find one, but the main concern is in regards to modifying the loom to suit the sensors on the throttle body of the 02 as all of the plugs are different. Anyone, anyone?

Cheers, Alex.

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Air is for pussies.

what ecu do you have?

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Long live the WRC

He has a Power FC iirc.

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[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

I did, yes, but it's getting changed out for a Vipec.

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Air is for pussies.

depending on how flexible the vipec is, it is possible.

its just a matter of repinning the plugs and telling the ecu of the new calibrations on each sensor.

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Long live the WRC

Hmm. Sounds like a worthy plan. Time to get myself a new engine loom by the looks of it. Will keep updating for anyone considering doing something similar in the future.

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Air is for pussies.

get yourself the loom from an GD wrx, i have repinned the entire GD engine loom into a GC engine loom pinout. even re-useing the GD coilpacks on a GC.

i'll map the pins for you and post it up.

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Long live the WRC

I can't thank you enough!

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Air is for pussies.

this is what i did for repinning on a 02/03 sti wiring harness to an unmodified JDM STI GC8 wiring harness.

connections to the waste gate solinoid, manifold pressure solinoid, differential pressure sensor and air flow meter remain unchanged.

my replacement ecu is the motec, this is untested on a factory ecu.

i have not included the reference for the cam/crank sensors, as they share the identicle same colours and should be traced/repinned manually to avoid confusion.

For the Brown plug (B21)

Pin	GD Wire	GC Wire	Note
1	-	GR
2	RY	YR
3	GY	WL
4	R	YL
5	-	-
6	-	-
7	WY+W	LgW	Coils
8	LY+LgY	YL	Coils
9	YW	LB
10	W	LR
11	LW	Lg
12	GW	Br
13	BR+BR	GW
14	BL	BW
15	BY	B
16	BL	BY

For the black plug or grey if GC8 (B20)

Pin	GD Wire	GC Wire	Note
1	G	WB
2	-	BR
3	W	LW
4	-	LB
5	-	-
6	RY	OrB
7	-	-
8	OrW	WR
9	BG	LightBlue
10	YG	Lg
11	WG	WL
12	R	RL
13	-	-
14	-	-
15	-	-
16	Gr	BY
17	-	-
18	-	-
19	-	-
20	-	-

This will leave over the four avcs wires GB+WB+LB+YB for the AVCS Solinoids

These are not necessary for GC8.

Attached Thumbnails

       

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Long live the WRC

Woot! Cheers mate. I was to some extent getting a bit of a grasp on it all, especially in regards to the COP conversion, but this will definitely save me some time so I can scratch my head aimlessly about other things.

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Air is for pussies.