Anders, do you remember the temp.unit Bjørn Anders replaced with the one you supplied? The old one was still in a box in the car, so I took the old mulitmeter and checked the reistence in it, seem to work fine, and gave an different reading after putting it in hot water, so shouldnt it be working just fine.....?
Could be, Bjørn Anders could not find out which one was faulty. It's either the sensor, the wiring or the instrument itself. The instrument is unlikely to be faulty (but it can't be ruled out, of course), so I think you should check the wiring carefully first using your multimeter, measuring from the instrument side back to the sensor. You can then compare measurements with those taken on the sensor itself (with the connection disconnected of course).
The sensor is supposed to have the following approximate resistance values, but I haven't been able to confirm them by actual measurements:
50 deg C: 70 Ohm
80 deg C: 30 Ohm
110 deg C: 13 Ohm
Did some more checking now.....
Grounded the wire to the temp sensor in the enginebay, and the meter went all the way to the top, both of the temp sensors also give a reading on the ohm-meter, but no reaction on the meter in the car....
From this I would say that the wiring seems to be okay, since it is transmitting the signal.
The meter also seems okay, or is there something with it so it need lower resistance from the sensor?
Or is the sensors(even both) broken, so much so that they are giving a too high resistence for the meter to give a reading?
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