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Is it possible to wire a single wire knock sensor to work with a 93 Mazda MX6? I changed the engine in my MX6 to one that came out of a Maxda Millenium. I have swapped over most of the required parts, however I neglected to check the knock sensor. The new engine has a single wire sensor whereas the old engine was equipped with a 2 wire sensor. I have the engine in the car and of course the old harness has a 2 prong connector while the knock sensor in the new engine is single wire.
Is there a way to wire the single wire knock sensor so it will work with the existing ECU?
 

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I don't know. But if you decide to swap the sensor, you might find this useful:
 

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Are you asking this because you don't want to change out the knock sensor from a 1 wire to a 2 wire ?
Or another reason ? I also installed a Millenia engine into my MX6, and used a 2 wire knock sensor.
This is not a difficult job to do, with a leisurely approach it can be done in an afternoon, even taking off the intake manifold.
 

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I would definitely not risk it leaving a single wire. May I ask why you don't want to just swap to a 2 wire and roll with it?
 
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