Does anyone on here know of any respectable car enginee tunners - I Have a Honda Civic Coupe 1.6 SRI, I recently installed a cold air filter system - and my fuel consumption has gone through the roof, I suspect that mixture setting is now incorrect - normally this can be altered manually, but I can't find the screw to alter the mixture as with previous cars ive had, and the Haynes manual does not mention it - therefore I beleive this my be controlled by the ECU - to which I have no knowledge of faulting - help

"John Noble motor sport" in Chesterfield should be able to re-map the ECU etc. Or at least sort out the problem for you. Changing the induction kit however, should not have affected your fuel consumtion IMO, but then again I am no expert.