Allow me , if you would .. You'll notice a small allen key bolt holding it in place , follow the wire down under the frame , in most cases when you do an oil change , oil will drip down and cover that connector with oil . Get yourself some electrical connector cleaner , I buy mine at Canadian Tire , any one will do and give it a good cleaning . Be careful when putting the CPS back into place , it has a small o-ring that you don't want to damage ... easy peasy . just like that !