Originally Posted by Mike bamford rose

Thanks, i will reply PM shortly.

The Bamford Rose ECU remap / upgrade is cel / error state free. Its curious as to the reasons why, but recently i have indeed seen (not BR) cars with modified cats and despite a remap, yet still trigger a cel. Clearly not everybody can write to all parameters of ECU, and whilst a mod in the manner i suggest is a winner for everyone, the electronics is a hurdle for some to deliver that hardware solution.