Are you using the 3L throttle body? It has a SVT style TPS on it. If mix that one up with the stock TB or if you used your stock TB TPS with the 3L then you could have broke the TPS as they both turn opposite directions.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
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'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black