https://www.ft86club.com/forums/showthread.php?t=142077
This seems to be the case for me as I found my OCVs (solenoids) are leaking into the connector and threw P000c and P000a codes. Before a hard driving one night, I had no problem driving the car, but once the code came up, the idle became inconsistent.
At the moment, I'm waiting for the solenoids to arrive and trying to avoid driving it as much as possible.