Location of Throttle Position Sensor

[steamship]

I purchased a Throttle Position Sensor and Pedal Position Sensor from the forum sponsors some time back, to try and eliminate some erratic throttle issues. I fitted the Pedal Position Sensor and all seemed well, but I'm still having the same issues (same as HPSauce). I went to fit the Throttle Position Sensor today, but bugger if I can find the existing one. Maybe I need new glasses

I've Googled for pictures but can't find anything relevant. Does anyone have a picture or diagram of where it it located, since the engine bay is in pieces at the moment, and i'd like to get it replaced today, if possible.