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ddgonzal
Re: can someone see the cam pick ups on this twin cam setup?
#6
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Ah, two sensors were only used 1996-1997.

this is interesting:
Quote:
'96 to '97... The fact that Mazda called them both a CPS was not helpful.

Of course, the old fashioned Miata enthusiasts were still calling a Camshaft Position Sensor (CPS) a Crankshaft Angle Sensor (CAS) adding the the confusion as there was now a real crankshaft angle sensor with the name Crankshaft Position Sensor.

Miata.net: CAM Position Sensor / Crank Angle Sensor

Posted on: 2015/6/2 2:03
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ddgonzal
Re: can someone see the cam pick ups on this twin cam setup?
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Correction, apparently on Miatas, the single sensor is per Mazda a "CRANKSHAFT POSITION SENSOR". The combo unit per Mazda is a "CAMSHAFT POSITION SENSOR".

Not sure why Mazda would use both, but they do. If you use a Haltech or a Megasquirt ECU, the combo unit is all you need.

18230 SENSOR, CRANKSHAFT POSI. NO.1
18230 SENSOR, CAMSHAFT POSI. NO.2.

Mazda parts
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Posted on: 2015/6/2 1:35
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ddgonzal
Re: can someone see the cam pick ups on this twin cam setup?
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I don't know what he's using on that custom engine. But in general, CPS uses a magnetic sensor or an optical sensor (e.g. Nissan Optical CAS).

The sensor here is a magnetic type. The third wire suggests it has an amplifier built-in making it a hall-effect subtype.
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Because it is a single sensor, it can only detect one thing (e.g. Cam Position or Crank Angle, but not both).

combo unit - Crank Angle Sensor/Cam Position Sensor
* Mazda B engines used either magnetic version Combo sensor or mitsubishi Optical version
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These are fitted on the back of the cylinder head on Miatas.

Posted on: 2015/6/2 1:00
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D
Re: can someone see the cam pick ups on this twin cam setup?
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No life (a.k.a. DattoMaster)
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yep CPS thanks, is it using a magnet?

Posted on: 2015/6/2 0:02
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ddgonzal
Re: can someone see the cam pick ups on this twin cam setup?
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Quote:
can someone see the cam pick ups on this twin cam setup?
Do you mean the Camshaft Position Sensor (CPS)?

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http://youtube.com/v/4AtudzdgaA4

It looks like he mounted a CPS right over the right-side Cam sprocket

Posted on: 2015/6/1 9:23
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D
can someone see the cam pick ups on this twin cam setup?
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No life (a.k.a. DattoMaster)
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Its a mazda and nice to see something different
rather than crankshaft cas using custom cam one
https://www.youtube.com/watch?v=4AtudzdgaA4

Posted on: 2015/6/1 8:21
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