Originally Posted by
stevieturbo
Again, can you provide a log or graph ?
If it's jumping fast, ie. large changes in less than say 0.5 or 1s, then it has to be noise.
Water temp sensors are very slow to respond, so they simply cannot change that fast, and any transition would be a smooth change, not a jump. So is that graph smooth, or literally jumps ?
Never took a log but it is moving quickly so must be noise. I will log it and send it to Maxx.
“Just to be 100%, you're reading values off the grey sensor above the aux air valve, not the brown thermo-time switch? As the latter could be throwing you right off..
(Colours based on OE, so may have changed if running any aftermarket sensors)”
The temperature sensor is in the OEM position for a Fiesta RST, I don’t have the thermo time switch or auxiliary air valve stuff.