[QUOTE=78F350;648950]I did a simple test with a cheap multimeter and some wires with alligator clips. I dipped the sensor in a bottle of oil that was filled to the depth that the sensor was immersed in the engine. My results were not precise, but did show a trend.
- A 'good' oil level showed around 15 mega Ohms resistance.
- High oil level got up to 19 mega Ohms
- With the sensor pulled out of the oil and wiped, it showed 8 - 10 mega Ohms
I may take the experiment a little further when I have time. I don't expect to find a 15 M Ohm resistor in my parts pile, but I may find some that I can put together in series to see what happens either connected to the sensor connector or directly to the cluster and ground.
78F350
The resistance thing didn't work. I finally found the test for a good sender in the repair manual and it compares with your test except it says look for 15.4 K Ohms. I cobbled together both the 15 M Ohms and the 14.7 K Ohms and neither worked. Because it is 2 wire and also transmits oil temperature, I think it is more a transmitter.
At any rate I bought one that will arrive any day. May have to put it in a mason jar of oil in the trunk to keep the cluster quiet.