Bd Apps Noise Isolator - Dodge Cummins Diesel Forum

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post #1 of 36 (permalink) Old 11-03-2009, 08:00 AM Thread Starter
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Bd Apps Noise Isolator

Ok so i picked up the bd apps noise isolator yesterday from xdp and the instructions are VERY VAGUE.

All it says basicly is to tap into the apps wire which is orange with blue tracer.

Well the wire starts at the pcm and runs throughout the harness and ends some where else unknown to me.

SO what i am asking is where do i cut that wire?

I know it either starts or ends at the pcm and the wire that bd supplied seems like it has to be put inline and grounded somehwere.

Any help would be great.

THanks guys.


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post #2 of 36 (permalink) Old 11-03-2009, 08:05 AM
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You cut it somewhere between the APPS and PCM, where you have good access.

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post #3 of 36 (permalink) Old 11-03-2009, 12:10 PM
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I just looked at them and yes they are a little vague. I have sent an email to have the noise isolators manual/single page enhanced.

Thanks for the feedback


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post #4 of 36 (permalink) Old 11-04-2009, 07:02 AM Thread Starter
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Quote:
Originally Posted by dozer12216 View Post
You cut it somewhere between the APPS and PCM, where you have good access.
Even that is vague.

Becuase one end has a "But connector" and the other is a ring terminal.

In in a sense you are saying to either cut it out of the pcm or out of the apps sensor???

I called bd and one of the tech guys said to not tap filter off the wire but to like find the end. . . idk.

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post #5 of 36 (permalink) Old 11-04-2009, 07:04 AM Thread Starter
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Quote:
Originally Posted by dave@BD Power View Post
I just looked at them and yes they are a little vague. I have sent an email to have the noise isolators manual/single page enhanced.

Thanks for the feedback

So where does it get installed?????

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post #6 of 36 (permalink) Old 11-04-2009, 11:48 AM
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There are only two connections on it? Typically a dc noise filter/isolator will have 3 connections. One will be the input, one the vehicle ground, and the other the output. The reason for this is the filter is usually nothing more than a capacitor. It removes allows the alternating components of the DC signal to pass to ground while preserving the steady DC signal.

I am guessing that the ring terminal is either ground or the case somehow grounds the circuit.

Take a picture of the unit and maybe we can help.

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post #7 of 36 (permalink) Old 11-04-2009, 12:15 PM
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Quote:
Originally Posted by kstinson View Post
There are only two connections on it? Typically a dc noise filter/isolator will have 3 connections. One will be the input, one the vehicle ground, and the other the output. The reason for this is the filter is usually nothing more than a capacitor. It removes allows the alternating components of the DC signal to pass to ground while preserving the steady DC signal.

I am guessing that the ring terminal is either ground or the case somehow grounds the circuit.

Take a picture of the unit and maybe we can help.
Yes the ring terminal is ground...


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post #8 of 36 (permalink) Old 11-04-2009, 12:18 PM
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BD Noise Isolator

Here is the manual
Attached Files
File Type: pdf 1300030 Apps noise isolator.pdf (170.2 KB, 1525 views)


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post #9 of 36 (permalink) Old 11-04-2009, 05:09 PM Thread Starter
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ok so i guess it just taps off the wire and then goes to ground.

Any spot that would be better to place it in?

Closer to the pcm or closers to the apps?

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post #10 of 36 (permalink) Old 11-04-2009, 05:30 PM
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Being its to clean up the dirty signal from the APPS I would place it as closely to the PCM as you can get. This will limit the possibility for other noise.

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post #11 of 36 (permalink) Old 11-04-2009, 06:14 PM Thread Starter
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ok good b/c there is a good spot to tap it right after the pcm.

Thanks alot guys

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post #12 of 36 (permalink) Old 01-13-2010, 03:10 PM
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Did this help the trans any?

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