[s-cars] Urs6 Detonation Problem

[iain.atkinson at tesco.net]

Guys i need a little advice here, my urs6 is running mrc stage 2 and the car has started to do what i think is pink/detonate, it does it only the motorway say in 6th gear going up a hill using full throttle, boost rises nicely to it's max and then i back off when i hear the noise.

I am using mostly shell v power (uk)or super unleaded, i have no error codes stored in the ecu car runs great in all other circumstances, any ideas on what is happening and how to cure it, i would have thought the knock sensors would have cut in if it is detonation. Any ideas on what else i am hearing???

Maybe the sensors are toast but i would have thought if they are then i would have error codes stored

Thanks


Iain