Hi all. I still have recurrent issues with the CEL coming on after having sent and received the TB back from da.co.uk. Have also eliminated the pedalpot to be the cause. Am now toying with the idea of swapping out the old ECU with a Haltech 2500 (http://www.haltech.com/elite-2500-2/) to see if there is a difference. Has anyone done this before? What can be expected? For the purists, thoughts?