Hey guys I've had a read at the old posts and I'm pretty sure if I spent long enough and took bits out of different posts I could piece together an answer but I figured I'd just ask in case anyone knows anything off the top of there head. My issue is that in anything above 3rd which is quite happy sitting at around 14psi I get a big spike in boost to the point of it red lining on the gauge the ecu light will flash on at around 18psi and go off as soon as i come off the accelerator. I've had a look at the hoses from the mbc and there all good I've actually replaced the one coming from the inlet so I'm pretty sure that's not the issue. Has anyone got any ideas ?