Hi all . Just got a fault code 00777 accelerator position sensor G79 27-10 implausible signal intermittent . Searched google about throtte pos sensor and a few threads seem to say it may be the 109 relay . vans running v poor at the mo , keeps going limp , missing when going along , hunting , all manner of sins . Would a dodgy 109 cause this or would it indeed be the throtte pot ?:*