I have been having the same knock sensor code popping up every now and then since the beginning of the season on my Nautique 200. Its always the port side sensor and its the DTC 327 code which means the sensor detects less than a certain amount of volts. The dealer mechanic came twice. The first time he realized I put thread scellant which I learned is a big NO. He cleaned it a bit, put some grease and put it back and it worked for about a month. The codes came back. The check engine light turned on when going over 34 mph. This time the cam retard was off a couple of degrees and the rotor was not installed properly. That worked for another two weeks. The codes popped up again. This time I took off the left sensor and cleaned the threads in the block and of the sensor. It was very dirty. It worked another two weeks until today. This time the check engine light always comes on when Im going about 30 mph with or without zero off. The check engine light turns on only about an hour at least after start up. It never lights at 36 mph and never under 30 mph.
The mecanic says the wires are good and the sensor works. That Im sure because I ve tested the sensor and it does work. Mecanic is thinkg maybe the cam retard was not ajusted properly...
Has anyone experienced this and what did you do to solve that problem? It would be nice to avoid having the mecanic come back. It is starting to get expensive..