I ran into a car yesterday that has the older style FAST. It has the grey box, not an XFI. It has the wideband in the stock 02 location, no knock sensor, and no IAT sensor on it. The front cover was removed to reseal and I helped set the cam sensor with the caspers cam sensor cap. Was it OK to use that? The car started but the light wasn't acting the same way it does on a stock ECM car. The car had been tuned prior to the cover reseal and does not use correction from the wideband when running. Is this car going to have issued down the line or is it just build against some of the typical stand alone basics?