Thread: P-0326 knock sensor
05-26-2009, 10:22 PM #1
P-0326 knock sensor
Took the 04 rxp out today after the dealer cleared all the sensor error codes and re-activated the vts, but after about 15 mins of riding, the check engine light came on flashing the the p-0326 again!! My ? is, does the knock sensor go bad or is it just bad gas?? It seems to come on after I hit about half throttle or more. I read its on the ECU but only owning this ski for a few months I have no idea where thats even located. Any help in finding and replacing this sensor would be great and who sells them for cheap .
05-26-2009, 10:37 PM #2
Early '04's came with a knock sensor harness update wire. Without it, you get that code everytime you break 5700rrrr's. Its a simple plug and play wire. Do a search on knock sensor harness. I run one on my '04.
Just my .02 Good luck.
05-26-2009, 10:41 PM #3
05-26-2009, 10:49 PM #4
Where is the sensor located to see if I have that harness already there>?? And it seems I would have to bring it into the dealer again to do the up-date with BUDS.
05-26-2009, 11:10 PM #5
Here are 2 pics. I happened to find them. The harness plugs into a wire that branches off from the A wire harness connected to your ecu. In the 2nd pic, the wire that splits off to the left (about 9 o'clock) is the wire which connects to the harness update wire. The first pic is the actual wire harness.
Hope it helps. Going to bed. Sorry.
05-26-2009, 11:55 PM #6
ill have to take a look, where is the ecu on the rxp though? and how much does the sensor cost, might as well replace that too.
05-27-2009, 05:46 AM #7
The sensor is ~$55 and located under the intake manifold. It's basically a speaker that "hears" pinging. There's a resistance test (ohms reading) test in the Service Manual that will tell you if it's good or bad... Ron
05-27-2009, 07:27 AM #8
The ecu would be under your right thigh if you were sitting on your seat. It sits right on top of the intake manifold. It's the only square box in there. It is underneath the thin plastic cover that covers half the motor. (many of us don't even keep the cover on anymore).
This is a pick of an ecu. Notice the A and B connector I spoke of above.
05-27-2009, 09:26 AM #9
05-27-2009, 09:30 AM #10
the manifold does not have to come off.
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