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Two wire sensors

posted Apr 13, 2016 22:38:46 by CharlesAcosta
Hello. Are there any videos to test and diagnose a two wire sensor like a crankshaft or camshaft. How they operate? Does AC voltage measurement come into play? So far I've only come across three wire hall effects detailed in the ebook (I'm only up to section 3).Thanks.
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5 replies
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Tyler said Apr 14, 2016 00:46:25
Hey Charles! There's a couple good videos available concerning variable reluctance, or AC sine wave, sensors available. This one goes into depth about Ford two-wire sensors, while this one goes into a similar design on a Lincoln.
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CharlesAcosta said Apr 16, 2016 04:30:01
Thanks!
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PaulDanner said Apr 30, 2016 13:07:53
Thanks Tyler!
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ArmandoNika said May 22, 2016 10:55:15
I have seen Paul's videos about vrs, but i wanna know ehich is the signal wire? I mean it should be the positive one because he gives 12v using a test light to the positive pin of the sensor.
If i do the same thing to the negative wire i mean ground the negative wire using a test light?
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PaulDanner said May 22, 2016 11:42:30
If i do the same thing to the negative wire i mean ground the negative wire using a test light?

What are you trying to do? If the bypass test on the positive wire is not providing the results you expect, nothing needs to be done on the sensor negative wire. On a lot of these, your test light will just light up because it is a constant ground inside of the computer. And on others, nothing will happen. The bypass test does not always work on VRS inputs
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