Finally fitted my msd chip after weeks waiting for a standard daughter board, followed instructions and it fired up lovely, when to get the co checked, it was showing 9% as apposed to the 0.9% in the instructions or so I thought, however the guy with the equipment said that 0.9 was probably reffering to AFR on the instructions I think im correct and its refering to CO. When I left the car was 2% co at adle with all electrics off but dropped to 0.83% when the fans cut in, both these figures where accompanied by lambda 1 AFR do I need to further adjust the CO? will 2% CO on idle cause me a problem with the closed loop chip. Thanks in advance Trev.