Single wire knock sensor on two wire harness

OUTRUN Part of things 13... Posts: 620	Single wire knock sensor on two wire harness OUTRUN @dustydrifter
	Oct 14, 2015 23:10:19 GMT Select Post Deselect Post Link to Post Back to Top
	I have an ATS Racing knock sensor for my 1992 Rev 2 Turbo MR2. www.atsracing.net/Parts/Details/EL-KNOCKSENSOR It replaces the stock Toyota sensor, with a Chevrolet unit and wiring loom adaptor (supposedly 'listens' at the correct frequency etc). The issue I can think of, is that the car originally runs a two wire KS, and the GM unit is single wire. Some MR2's run a single wire KS, so I guess this kit was designed with them in mind... Is it just a case of identifying the signal wire, and joining the new loom to that, and grounding the second wire, as the other end of it will be going to ground, anyway? Or, do I strip the shielding back and join the two together, then attach the new loom? If I have to I.D. the signal wire, anyone know which it is? If need be, I can trace it back to pin 52 on the ECU I guess, but would prefer not to! Thanks
	I need your help to get back to the year 1985.

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OUTRUN Part of things 13... Posts: 620	Single wire knock sensor on two wire harness OUTRUN @dustydrifter
	Oct 15, 2015 21:20:26 GMT Select Post Deselect Post Link to Post Back to Top
	Sorted. The car only has one wire, anyway. I could swear that when I had the KS off the car the other week, to multi meter it, that it had two pins... I don't know why I was asking which was the signal wire, either (if it did have two), as all I would have had to do is identify the ground, and that's simple.
	I need your help to get back to the year 1985.

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