Its a mazda and nice to see something different
rather than crankshaft cas using custom cam one
https://www.youtube.com/watch?v=4AtudzdgaA4

Quote:Do you mean the Camshaft Position Sensor (CPS)?







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

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

yep CPS thanks, is it using a magnet?

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.


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


These are fitted on the back of the cylinder head on Miatas.

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

Ah, two sensors were only used 1996-1997.

this is interesting:
Quote: