will late model acura knock sensors work in earlier d and b series? they are $35 new...

my application is a 1996-97 ecu/intake/sensors hx (d16y5) mini me on a 1996 d16y7 block


http://www.racepages.com/parts....html

thanks-


Modified by mini-e at 7:45 AM 7/23/2007

 

The principle behind a knock sensor. Inside is a Peizo Electric Crystal that is tuned for a specific frequency. When this frequency is heard the crystal will resonate causing an electric signal which is picked up by the ECU, which in turn retards timing.

Because this frequency is different for different engines it is highly unlikely that you can interchange knock sensors with different engines and get desirable performance/protection.

Junk yard is your friend is finding a suitable spare knock sensor.

 

All OBD-2 Honda/Acura knock sensors are the same for B/H/D series motors.

 

thnaks-

a pre ignition event must send a hell of a sound/vibration out... I wonder if motors of differing displacements/layouts do have knock sensors of differing values, or is the event so dramatic that a relatively broad (or maybe narrow makes more sence..) gate can to hear it in different motors. the sensors certainly could be different, and it is also totally believable that honda and/or honda's suppliers eventually found a way to drive cost out of the sensor and it is backwards compatible with some soldering . has anyone measured values? the same thread dia and thread pitch is cool but knowing if they also have the same value would make for a real time and money saver for lots of people.


Modified by mini-e at 7:37 PM 7/23/2007

 

nice

 

ttt

 

i saw a thing some time ago where this guy who worked for nascar switched his knock senser out of a gm one on his d-series.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Semtec &raquo;</TD></TR><TR><TD CLASS="quote">All OBD-2 Honda/Acura knock sensors are the same for B/H/D series motors.</TD></TR></TABLE>

Physically they all similar but inside they are indeed different. Part numbers vary as well. To truly determine the difference you will need to scope the signal coming out of the sensor.

2000 Civic EX 30530-P2M-A01
2000 Civic SI 30530-PV1-A01
2000 Integra GSR 30530-PV1-A01

 

Toyota knock sensors also have the same physical shape but again different part numbers for different engines. BTW Denso supplies both Toyota and Honda.

 

that settles it- junkyard it is.

thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stumpyf4 &raquo;</TD></TR><TR><TD CLASS="quote">

Physically they all similar but inside they are indeed different. Part numbers vary as well. To truly determine the difference you will need to scope the signal coming out of the sensor.

2000 Civic EX 30530-P2M-A01
2000 Civic SI 30530-PV1-A01
2000 Integra GSR 30530-PV1-A01</TD></TR></TABLE>


But the ECU will learn what the "normal" voltage range is, no matter what sensor you use. After you reset the ECU, it maps the sensor output for the first few miles of driving before determining what noises are "abnormal."

I'm currently using a GSR knock sensor on my D16y8. Works just fine. Factory knock sensors are a joke anyway. By the time you get knocking bad enough to throw a code, you'll have heard it already.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Semtec &raquo;</TD></TR><TR><TD CLASS="quote">But the ECU will learn what the "normal" voltage range is, no matter what sensor you use. After you reset the ECU, it maps the sensor output for the first few miles of driving before determining what noises are "abnormal."</TD></TR></TABLE>

I'm pretty sure there is no learning parameters for knock sensors in the Honda ECU.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Semtec &raquo;</TD></TR><TR><TD CLASS="quote">I'm currently using a GSR knock sensor on my D16y8. Works just fine. Factory knock sensors are a joke anyway. By the time you get knocking bad enough to throw a code, you'll have heard it already.</TD></TR></TABLE>

FYI: Detecting knock will not throw a code, it'll simply retard the timing by a prescribed amount. If there is an issue with the knock sensor, wiring, etc then it'll throw a code.