Bypassed the AEM this morning to see if it was the cause of a misfire, and went off to work. So far so good, no probs and all smooth and normal for my BPU Jspec auto.
Then 20 mins later, give a bit of power, not a WOT but just opening up a bit , get to 4500rpm and turbo 2 gets going, reaching about 110 leptons and there's a loud BANG from the engine and the red triangle light comes on the dash. Power gets cut (that might be me coming off the throttle) and then all is back to normal. Boost guage reads 1.21 bar peak. I do the same again later, but this time all is ok, do it again and ok....
On the way home, a carbon copy of the above. Same bang, same rpm, same boost pressure, happened only the once...
Any ideas people????
g.