DC2-ProdUcTiOnS

iTrader: (2)

So having some trouble understanding what Im supposed to be looking for. Need to make sure I do this right bc my friend has been chasing this problem for a month.

When testing the TPS, the procedure asks if there is appox 10% when the throttle is full closed and 90% when fully opened.

10% what? 90% what? From where? What am i measuring?

pic for reference

nub

It's talking about using a scan tool to read live sensor data. 10% open and 90% open.