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Old 09-18-2019, 12:34 PM   #1
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WHAT in TARNATION?!

This device was attached to the old muffler via a metal tube-sort of like a break line. Now its blinking a little green light.

According to what I looked up, it measures exhaust temps and fumes etc.


https://www.jmsec.com/air-pollution-...ic-module/?L=0



I figure I can do a "soft" delete and keep the connectors labeled until I'm sure the bus runs fine without it.



Wondering if anyone has had one of these, and if its safe to remove-just in case...IMG_0235.jpg
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Old 09-18-2019, 12:38 PM   #2
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From the website description it looks like a data logger. You should be able to disconnect it with no issue.

If you can unplug it and leave the wiring intact I don't see any downside to testing it. Unplug it and see if it affects drivability. If it does, then plug it back in.
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Old 09-18-2019, 01:31 PM   #3
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I can't but wonder how and to whom this device transmits it's data????
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Old 09-18-2019, 01:32 PM   #4
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some of thos have hard pressure lines ..if yours does make sure the lines are capped before you start the bus after removal
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Old 09-18-2019, 01:56 PM   #5
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I can't but wonder how and to whom this device transmits it's data????
Jack
From the website, I think that it has an SD card that stores the data.
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Old 09-18-2019, 02:10 PM   #6
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From the link you provided: "Each CRT system that is installed to treat diesel exhaust emissions is equipped with the CRTdm, a diagnostic module"

From the "CRT system" link in that description: "Johnson Matthey’s CRT® technology integrates a diesel oxidation catalyst (DOC) with a diesel particulate (DPF) filter to remove PM from diesel exhaust while simultaneously oxidizing CO and HC to CO2."

It would appear that you have aftermarket emissions that was added to your bus and that box is the controller to keep it working.


I would not delete it without first making sure you dont have the DOC/DPF system in there.
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Old 09-18-2019, 03:23 PM   #7
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I can't but wonder how and to whom this device transmits it's data????
Jack
The NSA!!!
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Old 09-18-2019, 05:47 PM   #8
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More likely the FBI

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Old 09-18-2019, 06:17 PM   #9
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Old 09-18-2019, 08:07 PM   #10
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Human history is just a long series of successful conspiracies.
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Old 09-18-2019, 08:12 PM   #11
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Well at least....that's what they would have you believe.
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Old 09-20-2019, 11:11 PM   #12
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some of thos have hard pressure lines ..if yours does make sure the lines are capped before you start the bus after removal
Mine has a metal line, but that was disconnected on the muffler end a few weeks ago, and I've driven it since with no effects.
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