Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

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PL
 

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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by PL »

Will do.

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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by Eric »

on a Z32 ECU a 800Kohm-1Mohm resistor will do the trick
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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by PL »

Thanks Eric - saved me some time!

So they are the same as SR20 then. Makes sense as I think they use the same knock sensor.

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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by User_Name »

Eric wrote:on a Z32 ECU a 800Kohm-1Mohm resistor will do the trick
Great! Thanks guys for the awesome info.
I'll go ahead and pick up one of these and the 2k ohm resistor for the exhaust temp!
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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by User_Name »

Eric wrote:on a Z32 ECU a 800Kohm-1Mohm resistor will do the trick
Having a bit of trouble locating a 800"K"Ohm resistor. When i search that in google it doesnt find anything, however it asked if i meant 800 Ohm resistor, with the K.

Is this the same thing? Want to be sure i purchase the correct one.

Also, does the wattage matter? I've located one at my local electronics store. (This is the 2k resistor for the exh temp)
http://www.frys.com/product/997836?source=googleps
Torque
 

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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by Torque »

800K = 800.000 OHM
Just get a one meg ohm resistor
1/4 watt

one mega ohm! :)

You must have RadioShack in the US ..
They stock these things :)

I would not worry about the sensors at this stage, for me this has never been an issue ..

Cheers,
Andrew
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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by PL »

Resistors come in "preferred values". These values may seem a little strange as they don't go 500K, 600K, 700K etc. They go 470K, 560K, 680K, 820K, 1M. This does vary a bit - but they're the common ones. So on the early knock sensors (Rb20/25) use 470K, on the later ones (SR20) use 1M.

PL
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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by User_Name »

Torque wrote:800K = 800.000 OHM
Just get a one meg ohm resistor
1/4 watt

one mega ohm! :)

You must have RadioShack in the US ..
They stock these things :)

I would not worry about the sensors at this stage, for me this has never been an issue ..

Cheers,
Andrew
Sorry to be such a n00b.
This is the correct resistor ?

http://www.ibsstore.com/scripts/prodVie ... oduct=5256
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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by PL »

Yep, that's it.

PL
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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by User_Name »

PL wrote:Yep, that's it.

PL
Awesome!
Thanks for the help!

So Knock sensor resistor is 1 Megohm 1/4 watt
http://www.ibsstore.com/scripts/prodVie ... oduct=5256

And fuel temp is a 2k ohm 1/4 watt
http://www.ibsstore.com/scripts/prodVie ... oduct=5942

Thanks!
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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by supersayianjim »

so, how do you install this resister?
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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by bachig24u »

Between knock sensor signal wire and ground.
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Re: Z32 ECU On R33 RB25DET S2 - Knock Sensor issue

Post by Matt »

Or internally inside the ECU (and cut pin to knock sensor). See our Z32 for RB25 guide on our website (Hardware installation)
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