S2000 Under The Hood S2000 Technical and Mechanical discussions.

replacing knock sensor.

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Old 08-06-2010, 10:56 PM
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Originally Posted by GyozA,Aug 6 2010, 07:45 AM
If you have small arms it's easier to reach behind the intake manifold and alternator with the 24mm deep wall socket and an extension. You need to unhook the connector first and then be EXTREMELY CAREFUL when putting the socket on the knock sensor. They break really easily considering it's soldered together, so I put the socket on with an extension. From there I attached it to the ratchet and took it off. I suppose if one were to break one they could resolder it and put it back on. If anyone needs pics of how I did it let me know...
I broke 2 of these within 4 weeks. broke 1 removing the tranny /top starter bolt. Then, I broke the replacement sensor.

The two pieces are NOT soldered together. One half is metal, the other half is plastic. Inside, there are two very fine wires, which will break easily, if the metal/plastic joint breaks apart. Good luck soldering those small wires inside there, as they're not very long.
Old 08-07-2010, 04:40 AM
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no the two metal pieces are soldered together...one is the part that has the threads and the other has the plastic lip...but both have a flat metal dish like end on 'em
Old 08-07-2010, 08:06 AM
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both of mine broke where the plastic lip sits inside the metal channel. Looked like it was glued in place during manufacture. I guess we can both be right.
Old 04-09-2011, 07:14 PM
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Originally Posted by GyozA
If you have small arms it's easier to reach behind the intake manifold and alternator with the 24mm deep wall socket and an extension. You need to unhook the connector first and then be EXTREMELY CAREFUL when putting the socket on the knock sensor. They break really easily considering it's soldered together, so I put the socket on with an extension. From there I attached it to the ratchet and took it off. I suppose if one were to break one they could resolder it and put it back on. If anyone needs pics of how I did it let me know...
i need a pics how u resoldered your knock sensor! email em to me ryanjim19@yahoo.com thank you very much
Old 09-02-2011, 11:41 AM
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the s2000 vs odyssey parts pricing mite be true from what ive seen with other makes. bmw has a 99-03 540 and also has a 00-03 m5. they both use same front brake pads and the 540 ones are about 40-60 dollars cheaper. different part numbers but the only difference is the "trick" used on m5 pads. they draw into the pads an arrow as to make it look like its special and ive never heard of directional pad lining
Old 12-07-2011, 06:31 PM
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@everyone. I've fixed the images broken in this post. For some reason I moved the images folder that they were in on my site.
Old 12-08-2011, 09:10 PM
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P0235: Knock Sensor 1 Circuit Malfunction (bank 1 or single sensor)

Can this code for the knock sensor mean anything else, or is it one of those things where its 99.9% certain that I just need to replace my knock sensor like shown on this post? I will order it if so, but I just want to make absoultely sure that it just needs to be replaced and nothing else before I do...
Old 12-09-2011, 04:23 AM
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Did you mean code P0325?

Then yes a knock sensor is needed. Has a starter or trans or clutch work been done recently?
Old 12-09-2011, 09:06 AM
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Originally Posted by Billman250
Did you mean code P0325?

Then yes a knock sensor is needed. Has a starter or trans or clutch work been done recently?

sorry- yes, thats what I meant, and the transmission was replaced a almost a half a year ago but the code didnt start coming on until a couple weeks ago. If you still think it needs replacement, where is the cheapest to get it besides honda? I tried some of the links posted and they dont work anymore...
Old 12-09-2011, 09:40 AM
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Even so, I'll bet it was disturbed during the trans removal. I can almost guarantee it.

Honda is the only source I know.


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