Hi Guys
I know that topics similar to this have been discussed quite a few times on many Volvo forums and I am aware that certain ECUs can be swapped without any problems and some can't. I have a 1995 T5 manual, ECU number 261 200 549 and I have an ECU from a 1995 T5-R Auto, number 261 204 134 which has an Autotech chip (allegedly 300hp...but I doubt it will actually make that power with just a K&N filter!!). I know that this ECU will not run in my car, I tried it anyway and it does the turn over, fire and then immediately cut out trick.
My questions are, is there any relatively simple way to make it work in my car?
If not, then if I remove the chip from the board and put it in my original ECU will that work and give me the extra power???

Many thanks in advance for any help you might be able to give.
Cheers
Matt