[Renhill]

Just bought my new Commander 1000 xt-p and two weeks into it, I get this PO 331 error code and the engine light is on. I don't notice any loss of power or performance issue, but I don't know how to fix this. From what I've learned, it's a problem with a Knock Sensor which monitors the spark noise level in each cylinder. How do I trouble shoot and clear this error code? Thanks