Ok so I wired everything together, DIYPNP is properly recognized by the computer.

I plugged the unit into my 93 n/a car. First tried to calibrate things and the TPS was not reading correctly. It's all stock, I changed nothing in the tps.
TPS is grounded with a resistor per the directions on the diypnp board. The TPS does not respond when I press the accelerator and the numbers are all over. Also its buzzing, and the values keep rising no matter what I do and theres no way to make it come back down unless you restart the car.

Do you know what the issue might be?

Thanks!

93 Miata - Stock everything

 

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You can't calibrate a stock TPS, because its not actually a TPS, its an on/off switch. You need to swap it for a real TPS.

 

Thanks Rev!! And for the follow up pms!