MY99/00 ECU Pin-out & Apexi Fitting
 

The following images provide the Pin-Out for the 3-Connector MY99/00 ECU for the Subaru Impreza WRX/STI/UK

Also provided is information regarding wire swapping for fitment of the Apexi PFC into a MY99/00 Impreza Turbo UK model (Not required if fitting the Apexi into a Jap WRX or STi).

To perform this modification you will need to :

Swap B136 Pin 5 with B136 Pin 6 (Swaps the Cam & Crank Signals)
On the MY99/00 it is not necessary to move the Fuel Pump Wire

The numbers indicated with a * on the Pin-Out indicate the 'Pin Numbers' in conjunction with the 'Notes' at the bottom of the diagram

http://img.photobucket.com/albums/v9...ps7xjkgaf9.jpg

http://img.photobucket.com/albums/v9...pscqsmexvh.jpg

http://img.photobucket.com/albums/v9...pswobmzxk8.jpg

cheers scott :)

bit confused as table says swap b136 pin 5 and 6 round.

picture says swap grey connector b135 pin 5 and 6 around.

I'm going to go with blue connector b136 as seeing as that is mentioned twice :-)

Should be blue. Error on my Red mark up above.
You'll probably find the grey doesn't use these pins.

hmmm, pins swapped and ecu fired up, no start, cranks and gets rpm readout on display, but can't hear fuel pump prime.

ah pump is priming, not sure if it because i reset ecu or just hadn't noticed.

Is it running ?
You may need to force the apexi back to default if it were running bigger injectors.

no not running yet,

yeah went in to ETC and then initialise i think it was, which i believe is back to default, at this point i definitly heard the fuel pump prime next time i cranked it, but no start.

wondering if one of the trigger wires is damaged, i get a rpm reading on commander when cranking, but i am not sure what sensor it is getting it from.

I assume you have swapped back to the OE ECU refitted the crank/cam in the correct orientation and all is well.

no, job for tomorrow night.

If you don't have any joy I can always fit your Apexi in mine to check it works.
I may aswell flash my map into it while there too, if it runs.

hmm, sounds like that might be an option, what injectors are you using, i'm on std 440's at moment,

440's and a Fuelab running 3.2bar

Is it a 2 or 3 port you have fitted scott .

3 but plumbed as 2

Cheers .

Just to resurrect an old thread, can confirm its pin 5 and 6 (red and white wires on a UK 99 car) on the blue connector and the pin out is shown from the face of the connector and not the ECU.

Looking at the history of this thread did you get it off Si
If so it looks like it has my tune on it, which would of confused me when I look at it

Yep, it's the one Si had, fired up fine which was a good sign, need to give it a service and change the centre pipe before mapping though.

Yes scott it was my one which i think you put a modified version of your tune on to get me by.