The metal filings can confuse the sensor's signal giving the ECU a "false" reading, which would then trigger a code.
I think there is a youtube video that shows how to clear it from the panel.Īnother possibility would be manufacturing debris (steel particles) stuck to the sensor's magnet-which would also contribute to a PO336 code. It can be removed from the panel manually but since it's stored in the ECU, it may (or may not) come back. What happens is when the RPM drops below that point with the engine continuing to run for X amount of time or longer, the ECU "thinks" that the crankshaft position sensor has experienced an abnormality-and then it sets a code in the ECU AND the panel (where the hourmeter is). The 16 and 17 models don't have this problem, unless your 17 is a leftover 15 model-which is entirely possible. The second "year models" (Kubota doesn't have year models, but they do extensively use serial numbers to distinguish the manufacture dates, etc) had different ECU programming which decreased the RPM threshold to somewhere around 400 RPM and for a longer period of time. If engine RPM were to drop below, I think at that time, 500 RPM for 1 second (and stay running) it would set PO336. When they first came out, it was more common. Stalling the engine will sometimes do that.
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