by Freon » Sat Nov 04, 2006 3:06 pm
FWIW, I have looked at the rev limiter code in the AJ243 (2004 STI) ECU and I don't think it would be very hard to hack it in a secondary rev limit
The ECU can pull in vehicle speed, so all it takes is a check on vehicle speed. If it is above a certain speed limit, branch to the normal rev limiter. If it is below a set limit, use a different value. This is code only, no physical changes. This would only be injector cut, just like the stock rev limiter.
I suppose you could also branch based on the clutch sensor bit.
But I will say that this particular ECU does NOT have LC to begin with. It will have to be hacked in.