John Martin Posted October 23, 2006 Share Posted October 23, 2006 I know that this is the Bank 1 (Rear) knock sensor code. What I can't figure out is why it only comes on after I heat the car up significantly by driving it on the highway. Does it sound like a failed sensor or something wiring related? I just put the intake plenum (not the actual manifold) back on as part of my repair of the valve cover gaskets, and I don't want to have to mess with this if I don't have to. I do have some knock at idle, and probably higher speeds, on what sounds like a single cylinder. It was not so pronounced before I fixed the valve covers and performed a tuneup -- plugs, wires, rotor, cap. Here are the possible knock causes I can think of: Valves need adjusting -- I'm hoping that this is not it I put in 20-50 oil while I was tracking down leaks, and have yet to change back to 30 weight I changed the plug wires to aftermarket (don't know whether the ones I replaced were OEM) I have not Seafoamed the car yet, so there's lots of carbon I'll check the timing again, but it doesn't sound like a general timing problem Any other possible causes I might have missed? Thanks, JM Quote Link to comment Share on other sites More sharing options...
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