I have a BFxr6 Turbo with a HPF Custom Tune at 298.6 kw at the Wheels, Since getting this done I have had a recurring error on the Dashboard with three or more error lights and the speedo will error out and drop to zero. This only happens under hard acceleration under boost. It has a custom exhaust and dump pipe from Performance exhausts with seimens 60lb injectors opened up airflow and a high volume fuel pump. Ford blamed this on a timing chain issue which I have had the chain and guides replaced the guide was broken no improvement. ECU has been replaced and reflashed HPF had it for 2 days on a dyno and couldn't find the cause of the fault though they believe it could be in the CAN bus (may as well say yea theres a fault in the car ) they spent the day pulling on various parts of the loom to no avail. A auto elec had it for a full day and said take it to ford lol .. Ford suggested I goto HPF...... PLEASE HELP !!! lol please see attatched Video of fault happening I had a friend said he had a similar problem with his 370kw tune and it was to do with the tune and possible to fix it via altering the tune.. please check out the clip and any advice would be appreciated thanks