any help would be greatly appreciated!! i have a 97 cobra. i have been fighting with my engine light since i bought the car a couple months ago. i have changed the idle air speed valve, the egr, pcv, plugs to bosch platnum +4, wires to ford motorsport, intake manifold runner control module, new upstream o2 sensors, mil eliminators for the downstream, new purge valve and sensor for the evaporative canister...i have eliminated all the fault codes except "bank 2 running lean" and occasionally "bank 1 lean". but the car smells very rich:shrug: some things of note on the mods are an 80mm maf, bassani high flow x,(which have been recently gutted...problem persists before and after) and underdrives. no the mass air isn't calibrated...but it still smells very, very rich... even before the gutted cats:shrug: sorry for the long question, but thank you very much for any help!!