It's been very cold where I live the past couple of weeks so I've been in the habit of starting the mini in the driveway 5 mins before I leave for work. It was particularly cold yesterday and through the night (-10_C to -15_C). This morning when I started it the idle was all over the place, really rough. Check Eng light came on and I shut the engine off. Waited a minute, because you know, that fixes everything on an engine, and then started it again again. Idle was fine but CE light was still illuminated. Plugged in my cobb tuner and got the following codes:

P1638 = Throttle Valve Position Control; Throttle Stuck Temporarily (according to obdii.pro)
P2B32 = TPS Actuator Control Min (according to cobb tuner)
P2B2B = TPS Actuator Position Error (according to cobb tuner)

Question. Could this be a one-off due to the cold weather or should I order a throttle position sensor and/or actuator immediately?

tia,

sani