well its a efi turbo engine in a xr3i and yeah sorry thats wat i meant the co is not pickin up at the ecu been told this by a well known tuner when they set it up they couldnt get the emmisions down and said i would have to get it sorted for the mot and surgested another ofac ecu to see if it cures the problem or spend money on a complete new ecu package but i cant afford that and cant find an ecu to try as im a bit skint anyway and dont want to waste money on something thats not going to help