Ok, so its not a thermocouple, (no mV output) and its not an RTD, or its an odd one as the resistance drops as the temperature increases. But I did find that the gauge (temp) was more accurate (with in a degree) when I had red to blue, and black to white, the other way was another degree or so out, but as is really only an indication, no biggie.
The boost gauge, when wired above was not very close if you compare it to a given pressure in bar, but if you multiply the gauge figure by 10, it gives pretty close results for psi. eg, 10 psi gave 1.0 bar according to the gauge (it should be 0.7 or so bar)
These are for my boost gauge, I would check yours seperately, to confirm this.
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Race Torque Dyno 399 NM, 248Kw @ 20PSI
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