NA tps fitted, not the turbo one I posted voltage sweeps for.
Backprobed voltage to VEMS which showed it worked fine.
.5 to 4.5v sweep.
KU engineering tb is designed with throttle cable on oposite side to stock supra item.
Probably to clear the PAS pump fitting on which it would otherwise foul.
TPS needs to work back to front, hence high to low issue.
TPS needs to be "sprung" to keep TB swing arm in contact with it when reversed.
The TB wasnt adjusted to allow TPS to be in calibrated range.
IT was sweeping until there was no contact with the tps arms.
We undid the grub screw holding the tps contact arms against the TB shaft.
Rotated it 90 degrees or so until it kept in contact with tps throughout the full sweep.
So starts at 4.5v and as you increase throttle, voltage drops to .5.
It could be possible for someone to hit the throttle faster than the ts spring can keep up, but unlikely.
Its also possible that the spring will go weak from being kept bound tight sitting at idle.
But as it stands its fine.
0 throttle is ~230adc, 100% throttle is ~50adc.
Wiring was fine
I could reverse the 5v and earth wires to have it sweep low to high, but thats a non issue it seems.
The spring is more of a concern,, but not a great one, unless osomeone else says otherwise.
Going to have a go at datalogging it with current map.
Lesson I take for the future, check that tps outputs what you want before you start the car.
note: ive had a quick google and it seems the Q45 TB is preferred for the KU manifold as it has the TPS on correct side.
There you go
