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Voltage and the cooling phase as low voltage.ĭuring the cooling phase, engine oil temperature The signal indicates the heating phase as high The oil level isĬalculated from the length of time of the cooling Measuring element is cooled down by the engine Therefore heat it up quickly above the current oilĪfter the heater voltage is switched off, the The measuring element for oil level also works Temperature sensor with integrated electronics. The oil temperature is detected by a separate PS From data sheet vehicle was manufactured in Jan '00! well before the week 27 mentioned in the longlife pdf from above.? So is it a retrofit from some time in it's life? i just want me gauge to work. It's very frustrating as I like to use the oil temp gauge rather than the coolant gauge to determine the warming of the engine.Īny further light that you could shed on this would be very appreciated. I have spent ages trying to locate the small metal sender that "every" source that I have found tells me should be the one, even the Haynes manual has a specific wire and sensor as the sensor type.Īs mentioned, It's been replaced at least once before by a previous owner, but the electrical connections don't inspire confidence being open ended crimps.or perhaps a non OE part has been spliced in and is duff? It has shown up to 90c usually working only after a "heat soak" in the supermarket car park etc.ģ. I have very intermittent oil temp indication on the gauge, basically it's off more than on. It has, however, also dropped to 70C twice during hard ish use, Ģ. The car warms up to an indicated 90C no problem. Thanks again, in advance, if anyone can provide a pointer to how the hell my car is wired up!!ġ.

I was dismayed at the lack of environmental protection at the crimp joints and the fact that the small 3 wire harness was basically rolling about under their unsupported.Įventually finding this thread has been a goldmine!!

If aragon reads this could he please provide a reference for this as, previously stated the only small sensor around the oil filter housing is wired up W/B.Īs the vehicle was in for some work with the undertrays off it was commented that the sensor had been replaced some time before. I had deliberated both online and with my Haynes manual as to where the little blue nosed thing was, but despite being pointed to the block by various sources it would now appear that it's the combined low level/ temp thingy in the sump that would appear to give the intermittant oil temp indication. For quite some time I have been hunting for the oil temp sensor/sender for my yr2000 RS 1.8tq.