ive bought a spi inlet manifold for my A+ 998cc mini engine. Its the same type i believe that is fitted to a few vauxhalls and renaults. Ive looked at the inlet i have bought and have found parts missing. Now, I am thinking , is there a more developed one from a later type vauxhall that would be better to fit to my manifold? I don't like the look of the massive stepper motor the mini ones uses for the idle, i may just bin that off anyway! Also, i don't know yet it the mini tps is just an on off switch or if its a proper potentiometer.