Hello there, just went to remove my ECU to wire in a VAFC II but i cant seem to get the bolts out,

They arn't normal sized bolts, i thought they were a 8mm at first, but no socket goes onto them, they seem to have 3 sides on the head? is there a specialist tool?

Thanks

 

I've never heard of a triangular bolt head before. But if I recall correctly, it should be a 10mm.

 

found a topic which says its only on UK/JDM s200's but no solution