Vref is the +5v power supply to the TPS. The middle yellow wire is the TPS input to the megajolt. This value will increase with throttle opening.
The other wire connects to the same ground as the megajolt.
You have to get the outer wires connected the right way round. You should see an increasing value on the megajolt as you open the throttle. If you get a decreasing value the wires are the wrong way round.
Make sure you calibrate the TPS in the global settings and save the table it generates to the megajolt.
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