So to update this a bit.

Yesterday my friend brought around a 1JZ auto Soarer. We had hoped to swap ECU's which were identical apart from the connections . So anyway not to waste the opportunity of having two mechanics at the house we set about checking stuff, and swapping parts from the soarer, like the ignitor box n other stuff. Everything was perfect and we could find nothing.

So it all points back to the ECU. The guys looked at it but couldnt say for sure, but one of them's father builds circuit boards so he said he would check it.

So I get a call an hour later to say his dad has looked at it and reckons that at least one of the capacitors does look iffy. He said he could test and maybe repair it and would be ready today.

So about a half hour ago he called back to say his dad had a closer look at it and it was basically fucked! All 5 capactiors were leaking and not holding charge, many more bits were knackered and one capacitor had leaked to the point of melting the current lines on the board. He managed to repair and check everything but we dont know if the main chips have been damaged. Ill pick up the ECU and plug it in and then we will know!!

Fingers crossed for tomorrow...