hi alex

it could be, as i was talking to someone and they said that they didn't think the 1.6 TPS of the SI would work with a 2.0 throttle body

when my conversion was done a friend( or so called friend) did the inlet side while i was reconnecting read hoses etc. and i think he used the 1.6 TPS

i have a 2.0 TPS at home i will try that