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I used the temp sensor from my M20B27, so that will work for you. Check your schematics as far as the color of the wire coming from the X20 connector to C101. Nando is correct in both the color of the sensor wire, and that the purple with brown stripe is not used. I like the late model instrument cluster. The E30 M3's are similar. I have read that it can be used with a euro E28 M5 coding plug. That might be something I look into whenever the funds are available, since my stock 7K tach is not very accurate.
Question for the gurus then -- do the m20 and m10 sensors read differently? My m10 has a different style sensor, with a ground wire. I'm going to try using it with through the e36 harness and see if it works, in wary of the late model sensor not working with my cluster
That is a good question. My car originally had an M10 and I'm using its instrument cluster and temp gauge with the M20 one wire temp sensor. It seems to be reading correctly. Don't quote me on this, but I remember reading that the M10 sensor is threaded differently. Let us know if you can use the M10 sensor.
I tapped a hole for the m10 sensor and it's in there now, but I also have a brown top m20 sensor (came with the ZA obd1 kit). Next time im at the car I'll check if they fit the same and obviously when I'm done which one works
5. oil pressure switch, I think (will double check)
Awesome, thanks. I googled it and couldn't see anything, but where abouts do the knock sensors bolt up to? I can't recall.
And what should I do with the oil pressure switch? I see a plug that could be for it on the oil pan, just plug it in there? (it's now an E34 oil pan, rather then the E36 oil pan)
No the oil pressure switch is located on the back of the oil filter housing, a little brown connector. Unless you wire up a connector for the oil level sensor it will not be used.
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