I have a fresh EFI setup going into an early model mustang - I have no provision in the exhaust for O2 sensor bungs. I want to start the car and drive it to the exhaust shop to have some welded in - Will the EEC-IV (A9P ECM) '89 mustang harness start the engine without the O2's connected and functioning? If so will it drive okay for me to make it 10 miles to an exhaust shop? thanks.