For some reason am not getting any RPM signal am wondering if I used the right resister for the pull-up circuit
when I turn the r56 pot to get 2.5v am getting 5v no matter how much I turn it's not going Bellow 5v on r54
Resister I used is 1k 1/4watt
no RPM signal from crank sensor
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billr
- Super MS/Extra'er
- Posts: 6828
- Joined: Sun May 15, 2011 11:41 am
- Location: Walnut Creek, Calif. USA
Re: no RPM signal from crank sensor
Are you talking about a 1k pull-up for a Hall CKP sensor? It will have no effect on the R54 measurement you are making to adjust R56.
Is this a V3.0 board that you built? Check the soldering (and orientation) of Q23, the pads for it are quite close together and there seems to be a problem with Q23 operation.
Is this a V3.0 board that you built? Check the soldering (and orientation) of Q23, the pads for it are quite close together and there seems to be a problem with Q23 operation.