SteelerDan
New Member
I've replaced my short block with a B20 Z2 I have run into a technical issue with the three sensors located next to the oil filter on the B20 block, VS where they were on the B18.
I omitted the knock sensor from the B20, and had to drill and tap a location for the AC Temperature switch.
that left the Oil Pressure sending unit, easy, same location on both blocks. Here is my question.
There is what appears to be a "temperature switch" that appears to read OIL Temperature. I am not sure if this is correct or if this is another water Temperature sensor.
I've uploaded two images. The mystery sensor is Green.
Of note, this mystery sensor/switch screws into a large flat freeze plug type threaded insert. there are two on the intake side of the block. This one is near the oil filter, and at the Alternator end of the block, or front. when I removed it, no coolant came out, and the probe end of the sensor was coated with oil.
I omitted the knock sensor from the B20, and had to drill and tap a location for the AC Temperature switch.
that left the Oil Pressure sending unit, easy, same location on both blocks. Here is my question.
There is what appears to be a "temperature switch" that appears to read OIL Temperature. I am not sure if this is correct or if this is another water Temperature sensor.
I've uploaded two images. The mystery sensor is Green.
Of note, this mystery sensor/switch screws into a large flat freeze plug type threaded insert. there are two on the intake side of the block. This one is near the oil filter, and at the Alternator end of the block, or front. when I removed it, no coolant came out, and the probe end of the sensor was coated with oil.
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