I've had an ongoing problem with my idling once the car is warmed up. My ECU was spitting out codes for the TPS and the Cyl position sensor which is located in the distributor. I've replaced the TPS and the distributor hoping that it would idle better. The CEL went off and the codes went away so that was a good thing. Now I still need to work on the idle.

After the car warms up, when I'm sitting still at an idle, the RPMs go up and down from about 1200 to 700 - up down up down.

Could this be related to "adjusting" the TPS?

The car is a CRX/JDM b16a combo.