Hi folks,
I've been trying to fix a wiring problem with my Xmoto for a while, that was causing the engine to randomly cut-out while riding - not good in the middle of an overtake! I've fixed one issue with a short related to the fuel pump but I'm now left with the following:
821: Speed sensor (rpm), signal implausible.
This fault occurred 3 times.
The fault is not present now.
This is after fixing the other problem and clearing the codes and then doing over 100 miles without any problems. Then the bike ran like a pig for a bit - surging nearly stalling, finally cutting out just as I got 100 yards from home. The bike restarted straight away. This same error was present before but I mis-read it as the wheel speed sensor, so I checked out that wiring.
Now I see it's the engine speed sensor and there appears to be an intermittent fault. Do these sensors fail in this way or is it most likely to be a wiring problem?
Cheers,
Paul