V6 Sti ECU Plug n Play on MY99 GC8??
have read several posts with regards to a "cheap" power upgrade for a MY99 wrx ....some suggest just running a VF34, Upgraded Fuel pump and V5/6 Sti ECU
I've got my hands on a V6 Sti ECU and just wondering if it's a simple plug n play replacement...or do I need to splice / crossover and wiring for this to work? also, would it work without any of the hardware upgrades or is the ECU specifically running a tune for the VF34 (i.e. will not be right for the TD04??) Cheers |
and apologise if this has been discussed before... and links to useful threads would be much appreciated
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[url]http://www.perth-wrx.com/vb/mechanicals/51983-vf34-upgrade.html[/url]
[url=http://forum.wrx.com.au/viewtopic.php?t=81041]My00 Sti ecu in My00 WRX not starting - Impreza WRX Club Inc. Forum[/url] [url]http://www.perth-wrx.com/vb/mechanicals/47957-sti-computer-vf34-turbo-thoughts.html[/url] The V5/6 ECU is a direct plug in for MY99/00 GC8, requiring 3 wires to be swapped on the connectors. I ran it on mine for a few years until I recently went aftermarket ECU. The STI ECU with a turbo upgrade and full 3 inch turbo back exhaust will transform the car! It will run with a VF34, I was running a VF24 (I reckon the VF turbos are all pretty much the same anyway). |
Which wires did you have to swap around?
[QUOTE=matto20v;834436][url]http://www.perth-wrx.com/vb/mechanicals/51983-vf34-upgrade.html[/url] [url=http://forum.wrx.com.au/viewtopic.php?t=81041]My00 Sti ecu in My00 WRX not starting - Impreza WRX Club Inc. Forum[/url] [url]http://www.perth-wrx.com/vb/mechanicals/47957-sti-computer-vf34-turbo-thoughts.html[/url] The V5/6 ECU is a direct plug in for MY99/00 GC8, requiring 3 wires to be swapped on the connectors. I ran it on mine for a few years until I recently went aftermarket ECU. The STI ECU with a turbo upgrade and full 3 inch turbo back exhaust will transform the car! It will run with a VF34, I was running a VF24 (I reckon the VF turbos are all pretty much the same anyway).[/QUOTE] |
[QUOTE=Jared;851597]Which wires did you have to swap around?[/QUOTE]
Don't be lazy, click the links I posted above, [B]its *all* in there [/B] |
It works the car starts n revs nice.
Ok the advice I will give other's is that the plug pics in the above link are facing you and to b careful ur not trying to remove plug 9 when you want 1. Also watch this video to show u have to remove the pins([url]https://www.youtube.com/watch?v=0b8eJDL7deI[/url]) So in short to put a sti jdm ecu in a aus wrx u need to swap pin 5 and 6 on the blue plug and also move pin 1 to the empty 21 position on the black plug THIS IT? just double checking, i had to swap the cam sensor wire for powerfc. thanks [QUOTE=Jared;851597]Which wires did you have to swap around?[/QUOTE] |
From memory the v5/6 STI ECU has a very aggressive tune for JDM 100RON so you will need to be very careful and have a knock link at a minimum because they do not pull timing on knock.
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[QUOTE=deejw;851605]From memory the v5/6 STI ECU has a very aggressive tune for JDM 100RON so you will need to be very careful and have a knock link at a minimum because they do not pull timing on knock.[/QUOTE]
Okay, so if i just use the gc8 wrx standard ecu and use an electronic boost controller it should be fine? Warm regards, Jared |
You wont need an electronic boost controller, the V6 STI ECU will run at 14 psi by default.....
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If you override the car's original boost solenoid to put in a ball and spring type MBC, can the ECU still delay ignition and detect "knocking" beyond that it cannot lower pressure?
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