Problem using cam sensor inside Honda B serie distributor
Posted: Sun Nov 19, 2017 3:43 pm
Hello everybody,
I’ve got a problem about using the OEM honda distributor as a cam sensor.
Inside the OEM distributor, are 3 sensors.
One is the crank sensor (24 teeth without missing tooth)
Another one is the cam sensor (1 tooth)
The last one is not used (4 teeth, one for each TDC)
DTA document about wiring tell that are magnetic sensor, so pin 22 and 12 must be used.
But I have a problem with using the cam sensor as a magnetic sensor.
Here is a picture of the crankshaft oscilloscope using crank and cam sensor as magnetic :
https://photos.app.goo.gl/zhw1eLdMJxvYCf4J3
You can see the cam signal is not good at all !
Then I tried to use it as hall sensor and it seems working
Here a picture of the crankshaft oscilloscope using cam as a hall sensor :
https://photos.app.goo.gl/aA8doKFmXznEw1Z92
But as Alex (from DTA) told me, It will not work a long time and with high RPM because this sensor only have 2 wires (a hall sensor must be powered so have 3 wires).
https://drive.google.com/file/d/1kIcHj8 ... sp=sharing
So I tried to understand what going wrong :
I thought my distributor could be damaged so I bought another one, a second hand but a Honda OEM one to be sure of what I have under my hands.
It did not work, so to be really sure, I found another one again, again a Honda OEM, and again it did not work ...
So I thought It could be my electric loom. I ad some wires to shunt the electric loom to be sure, and again it did not work (so my electric loom seems to be ok)
I also tried to commute ground and output but it did not work
A friend give me another DTA S60, and it did not work ...
I finally tried to modify the target of the sensor, grinding (yellow area) the metal to make a very distinctive tooth, but it did not work ...
https://photos.app.goo.gl/ppHpasx41qLPRERq2
So I need your help !
I don’t know what to do more !
Thank you
I’ve got a problem about using the OEM honda distributor as a cam sensor.
Inside the OEM distributor, are 3 sensors.
One is the crank sensor (24 teeth without missing tooth)
Another one is the cam sensor (1 tooth)
The last one is not used (4 teeth, one for each TDC)
DTA document about wiring tell that are magnetic sensor, so pin 22 and 12 must be used.
But I have a problem with using the cam sensor as a magnetic sensor.
Here is a picture of the crankshaft oscilloscope using crank and cam sensor as magnetic :
https://photos.app.goo.gl/zhw1eLdMJxvYCf4J3
You can see the cam signal is not good at all !
Then I tried to use it as hall sensor and it seems working
Here a picture of the crankshaft oscilloscope using cam as a hall sensor :
https://photos.app.goo.gl/aA8doKFmXznEw1Z92
But as Alex (from DTA) told me, It will not work a long time and with high RPM because this sensor only have 2 wires (a hall sensor must be powered so have 3 wires).
https://drive.google.com/file/d/1kIcHj8 ... sp=sharing
So I tried to understand what going wrong :
I thought my distributor could be damaged so I bought another one, a second hand but a Honda OEM one to be sure of what I have under my hands.
It did not work, so to be really sure, I found another one again, again a Honda OEM, and again it did not work ...
So I thought It could be my electric loom. I ad some wires to shunt the electric loom to be sure, and again it did not work (so my electric loom seems to be ok)
I also tried to commute ground and output but it did not work
A friend give me another DTA S60, and it did not work ...
I finally tried to modify the target of the sensor, grinding (yellow area) the metal to make a very distinctive tooth, but it did not work ...
https://photos.app.goo.gl/ppHpasx41qLPRERq2
So I need your help !
I don’t know what to do more !
Thank you