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ok well i got a 00 Si with a 94 jdm gsr in it head was converted to obd2 sensors im running the si tranny. My problem is i get code 23 Knock Sensor. I have 2 questions

1) i know the knock sensor detects vibration in the motor and then retards the timing, but what can cause the vibration?

2) should i have the timing checked (cuz i don't have a timing light) and make sure its on could this be a possiblity for it knocking??

FYI I replaced the knock sensor wit a brand new 94 gsr knock sensor from the acura dealership and brand new harness from honda dealership 2000 si harness....and 2000 si ecu

please help

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anyone?

GPoodle

Another possible cause is that you aren't using insulated wire for the knock sensor -> ECU.
I'm getting the same problem with code 23 comming on after hitting around >4500 and I'm positive its because of all the noise and electrical interference between the sensor and its ecu connection. Look into that, its been a documented problem.

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i get mine at about 18pmh no matter what gear.....and like i stated it is a brand new 2000 si harness from the dealer ...its put together the way it is supposed to be none...anymore help on this i need to know

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any help?

Turbogixxer

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SikCivic &raquo;</TD></TR><TR><TD CLASS="quote">
1) i know the knock sensor detects vibration in the motor and then retards the timing, but what can cause the vibration?</TD></TR></TABLE>

Detonation, when the knock sensor senses that, it retards the timing in hope of stop it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SikCivic &raquo;</TD></TR><TR><TD CLASS="quote">2) should i have the timing checked (cuz i don't have a timing light) and make sure its on could this be a possiblity for it knocking??</TD></TR></TABLE>

I think that you should check the timing with a timing light cause too much or too little will cause Detonation.

Also, check the wire and connect to the knock sensor. It will not (to my knowledge) throw a code for some thing that will cause it to tell the ECU to retard the timing.

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well its a brand new 94 gsr knock sensor and a 2000 si wiring harness...could this be the problem 94 gsr knock on a 2000 si harness does it have to be the b16 knock sensor or the 94 gsr one?

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anybody?