Hi all, just thought I'd post this in case its of any use to anyone with a 1.6 tps (on/off type) who is looking to upgrade to a variable tps
This works perfect, and is fairly easy to do.
Variable tps is needed for e-manage ultimate features such as launch control and autotune.
For this mini-project, I've used a 1.6 auto-transmission throttle body, with variable throttle position sensor, part number B6S8-18-911
These sensors can be found on e-bay, and are quite easy to find.
Replacing the throttle body was a matter of convenience for me since I had one lying about, but it may well be possible to replace the stock sensor with the variable type with no hassle. Either way, the 1.6 auto TB was a straight swap, no agro.
My biggest worry was the wiring side of things, but that was no hassle actually. This new tps has an inbuilt switch to feed the stock ecu with a 5V signal at idle. Most other variable tps's don't have this, and so can't be used.
The wiring is as follows:
Stock 1.6 tps sensor has 3 wires - red, green & black-lightgreen.
New variable tps sensor has 4 wires - red, red-black, black-lightgreen, lightgreen-red.
To fit the new sensor, solder red to red, and black-lightgreen to black-lightgreen.
Solder green (stock sensor) to lightgreen-red (replacement sensor), and red-black (replacement sensor) is the tps signal.
Thats it !
BTW, red is the 5V signal which the stock ecu requires at idle (or 0 throttle position), 5V drops to 0V at any other throttle position.
The blue wire is for my tps input to the EMU.
old throttle body