Blingscooby

Hello peeps I have a 94 WRX which I picked up cheap as an auto and have just converted it to manual, the car is spot on apart from it occasionally has a fuel cut type problem. The ECU is showing throttle position sensor (code 33)so I assume this is something to do with some additional wiring.

I know the connector of the accelerator pedal itself is not connected due to the auto loom being different would this cause the problem? If so does anyone know where to wire it in if not any further suggestions? The car ran fine prior to conversion.