Huw Powell wrote: those figures are irrelevant, you are aiming for a warm idle setting (adjust at the static mixture screw) of 10 mA +/- the OXS cycle fluctuation. according to your description you've got it wired right. &&&&&&&& Huw: for the 1988-1990 80/90 I5 10V, the reading should be 0 mA per the Bentley. kirby