Originally Posted by
ECOS95
Check if the car has the tray under the engine. My friends BT did the same & we think it was due to rain getting into the engine bay & affecting the Dizzy. His was missing the tray.
Mine has a boost problem when on full boost but only in 5th gear (90mph+) I adjusted the crank sensor as there was about a 5mm gap and it's slightly better. Thinking about it now it has only started since i removed the undertray to change the oils. Maybe its a coincidence or maybe the undertray keeps the wind from effecting sensors????