Hi guys, I'm having a bit of a problem, I have this dip in power spot on 4000rpms. It's as if the engine is sucking in brake-cleaner for a split second. The power comes back on straight away, the dip is only for a fraction of a second, it's really annoying as it happens in every gear spot on 4000rpms and only under full load, you know, when I'm flooring it, I suddenly get my head lurched towards my steering wheel and then she carries on accelerating as if nothing is wrong!!
I have a boost gauge and needle doesn't budge as i'm going thru the 4k mark so it's not a loss of boost.
I'm really racking my brain, the software is fine, the AMM is new, there are no boost leaks and no error codes on the Tech II..
Can anyone help me please?