Multi function tempreature sensor

[Huw Powell]

> Third is the MFTS which apparently does much more than prevent over-boost in
> a hot engine.  I think it also controls mixture values electronically
> depending on coolant temperature.  Maybe the "ordinary" coolant temperature
> sensor also affects this.

No it doesn't.  It runs the coolant temp gauge, and interacts with the 
AC system.  It does not talk to the engine ECU.