Yeah, if theres any split pipes it will be sucked into the engine and it will stall or try to stall then youll know where to look.

Oh right ok fair enough I shall give that ago thank you

Just found two new codes 16804 18010

16804/P0420/001056 - Catalyst System; Bank 1: Efficiency Below Threshold

18010/P1602/005634 - Power Supply B+ Terminal 30: Voltage too Low

Second one is caused by disconnecting the battery

First one could be a mixture issue, need to get those breather pipes checked as could be linked.

Pipes have been checked and nothing, bought some carb spray and sprayed pipes but nothing, but the turbo hasn't been spoiling up as fast as it use too, I was told to put the standard Bosch valve back on and bang feels so much more lively as before, I have a forge 008 only a few months old with the yellow spring in, it seems like boost leak to me? Do I go for stronger spring maybe?

Yea that was 're set as you say battery was taken out and new one put in