Anybody ever try adjusting the TPS sensor?

I think that mine is off, hitting the fuel cut, and f%&ing up my idle big time.

My question is, how do you hook up a multimeter to the TPS sensor?

Is there a pin on the back of it, or do I have to loosen it up, and slide the positive lead of the multimeter down to touch the sensor pin coming off of the blue/pink (red?) wire?

Thanks.