Anyone else had sensors playing up in the cold?

[Error404]

I'm sure cold weather has messed with a load of my sensors.
So far this week I have had:

2 knock sensor faults (Replaced one, doing the other one tomorrow)
Brake warning intermittently bleeping (suspect PAS cap or pressure sensor)
MFTS playing up with temp warning (given it a clout a few times but keeps coming back)
AFM being temperamental (swapped the spare one in)

[lji86]

my MFTS is on its last legs, the temp and fuel guage have been very irratic the last couple of days

[stiglet]

Yep, had a big problem with idling. Hunted beween 500 and 2500rpm

I don't know what it was, but it started when it got cold. Unplugged everything(ICV, MAF, TPS...), plugged back in and now all fine