what causes a cam senser fault

[Nightrider1]

I have a cam senser fault. what causes it

[Bob Denman]

Does the bike run okay?
There's usually two potential sources for something like this:
The sensor itself is "bad", or at least sending poor info to the system...
or the cam itself is somehow busted! :shocked:

[Chupaca]

The sensor indicates the the cams are in alignment. Cams are belt or chain driven and therefore have tensioners to keep them running smoothly. Old ones needed adjustments but the newer ones are selfadjusting. On occasion you may get a slack/slap not sure why maybe a backfire or lugging the engine but for whatever the reason the sensor will note this and indicate it with a warning. If it clears after a computer reset and does not come back then it is one of those momentary readings and all is well. If it doesn't clear or comes back there may be a sensor issue or a cam alignment issue. Some times too much information can ruin your day...:dontknow:

[Nightrider1]

could to much oil cause the problem

[Bob Denman]

:dontknow: Too much oil, is usually much better than not enough of it... :yikes:
But I don't think that it should affect the valvetrain by THAT much! :dontknow:

[Koop]

Cam position sensors are electronic devices - usually a Hall effect sensor. A fault doesn't necessarily mean the sensor is bad - it usually comes down to a poor electrical connection. Check the connectors for corrosion.

Most of the time a cam position fault doesn't affect performance to a noticeable degree. The ECM substitutes the crank position signal and calculates cam position from there. Some of the engine operational parameters may be simplified without exact cam position information though.

[Nightrider1]

just got the results from the dealer. the senser just went bad and they ordered one. brp said they have had some problems with them.

[Bob Denman]

Thank goodness that it's just the sensor! :clap: :2thumbs: