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Knock senson bypass question

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Old 09-23-2009, 12:25 PM
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Knock senson bypass question

Is this the way you bypass the KS in the picture its a 470k resistor in the connector.

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Old 09-23-2009, 12:32 PM
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clear your ecu codes too.
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Old 09-23-2009, 12:33 PM
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Looks like it, this has to be like the 7th knock sensor related thread this week.. could've probably asked in the current KS thread.

If you really want to know if thats correct, go clear your CEL and see if it comes back with P0325 / 034. No offense but its not rocket science.
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Old 09-23-2009, 12:34 PM
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done that and its still showing the code
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Old 09-23-2009, 12:38 PM
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I know its not rocket science, didnt ask that either. I asked is this the way you bypass the KS.
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Old 09-23-2009, 01:21 PM
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sorta wondering this my self i did it just the way u did and im still getting a KS code. maybe could it be installed backwords?
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Old 09-23-2009, 01:27 PM
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Check out this thread
http://forums.maxima.org/4th-generat...tall-pics.html
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Old 09-23-2009, 01:41 PM
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that is about how we did it but that does not esplain why we are still getting a KS code?
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Old 09-23-2009, 02:14 PM
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Originally Posted by VQphantom
I know its not rocket science, didnt ask that either. I asked is this the way you bypass the KS.
Well, for starters... you didn't say you had problems, You just asked if it was done right. That question was answered in a KS resistor writeup thread posted no more than 2 weeks ago and perhaps bumped this week. Next time try umm providing a little more information in your initial post so you dont get that criticism you don't like.
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Old 09-23-2009, 02:34 PM
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I dont think i asked if it was rocket science buddyand i dont think i asked for criticism. Reread the first thread again no rocket science or criticism in the question.
Originally Posted by ColombianMax
Well, for starters... you didn't say you had problems, You just asked if it was done right. That question was answered in a KS resistor writeup thread posted no more than 2 weeks ago and perhaps bumped this week. Next time try umm providing a little more information in your initial post so you dont get that criticism you don't like.
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Old 09-23-2009, 02:35 PM
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Thank man, i searched but i couldnt find 1 wit pics.
Originally Posted by The Wizard
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Old 09-23-2009, 04:50 PM
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does'nt matter if the sensor is backwards or not. how you have it hooked up that could be a problem too.
if you splice into each side of the wire and do it like that.

also does the ks resistance supposed to be 470k ohm?

i did the ks bypass (on one side so far)on my q45....that ***** moves!!
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Old 09-23-2009, 05:13 PM
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this link says 500-620k ohms so maybe we have been using the wrong resistor.

http://www.nicoclub.com/articles.php?id=157926
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Old 09-23-2009, 05:25 PM
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yea the 3rd gen and q45 uses 470k ohm.
becuase once it "sees" the "sensor" the code should clear.
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Old 09-23-2009, 06:02 PM
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This resistor hack has always perplexed me. The knock sensor is a piezoelectric element. These elements make a voltage when distorted by a force (like the concussion wave of detonation propagating through your engine block and head). I supposed that the element has a resistance (insulation leakage resistance), somewhere around 470K ohms (yellow-purple-yellow-gold in resister speak), and the ECU passes a voltage through and measures for an expected current to see if the sensor is there (or if the wireing is bad). As long as the sensor is there, and remains quiet (no knocks detected because a resister cannot detect them) timing goes on as normal. I guess I just answered my own question.

So basically, its like telling the brain the eyes are there, but not sending back any information about what your surroundings look like so you constantly bump into things and can't figure out why.

If you want to do it "right" (that's an oxymoron) follow the link The Wizard posted. If you want to do it right (withouth the quotes) check here.
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Old 09-24-2009, 08:45 PM
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Ok after i did the knock sensor resistor ,i drove for awhile and i noticed it started studdering really bad when i punched the gas its rediculus.
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Old 09-24-2009, 09:01 PM
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I did this with a 470K resistor and the code is not there.
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Old 09-24-2009, 09:24 PM
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Do u remember the pattern of colors on your resistor . i think i might have the wrong 1
Originally Posted by ChrisMan287
I did this with a 470K resistor and the code is not there.
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Old 09-25-2009, 04:01 AM
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Originally Posted by VQphantom
Do u remember the pattern of colors on your resistor . i think i might have the wrong 1
I just checked and there is a purple stripe on it just like yours.

Last edited by ChrisMan287; 09-25-2009 at 04:32 AM.
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