WJBertrand
Ventura Highway
Got ya. Whether fuel goes in above or below the throttle butterfly, it is still injected upstream of the intake valve, so cannot be considered direct injection.The point is that you have no way to adjust the fuel, in terms of manual adjustments. Fuel thru the injectors is being sprayed after the throttle plate, not before. There is no intake plenum in the way you see on some cars with throttle body injection.