[Norton1090]

My wife and I just recently purchased coach #210 a 1989 widebody with a tag.  It is powered by an 8v92 and has a 4 speed Allison.  Thing runs great.  Has a pretty good pull to the right, but that is being remedied as we speak.  
I am a life long gear head, however it's always been gas powered cars and trucks and mostly GM.  With the exception of body work, largely because I hate it, I am a hands on guy.  
So, long way around the barn here, what is a good monitor scanner to keep an eye on the DDEC II system?  I did a search and many of the answers are several years old and I know that this type of tech changes rapidly.  
I am not looking for something to be a full on diesel tech but I am unsure how much to trust the OEM gauges and check engine lights.  It's pushing 40 years old.  I does only have 85,000 miles according to the odometer and I know a Detroit is tough as nails so I am not too worried.  But, an ounce of prevention and all that...

[Richard]

The orig gauges are totally inaccurate by now.

Bluefire or scangauge is likely your best option. VMSPc is no longer available.

I run Bluefire. The trick will be finding an adaptor to go from the ALDL plug Newell used to their 9 pin round plug.

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The orig gauges are totally inaccurate by now.

Bluefire or scangauge is likely your best option. VMSPc is no longer available.

I run Bluefire. The trick will be finding an adaptor to go from the ALDL plug Newell used to their 9 pin round plug.

Here is link for the adapter, its listed on Bluefire's website but I know I was a bit confused when I was looking to figure out which one I needed. 

https://obd2allinone.com/products/ALDLto6Madap.asp

I would agree for most of what he wants to do the Bluefire would probably be best.

I have some old school DDEC readers that i picked up for deeper investigation, Pro-Link is what they are called. They require different cards for the different versions of DDEC.

[whited44]

I use the BlueFire on an iPad. Richard is correct the gauges are totally inaccurate

[Norton1090]

Thank you all very much for the help.
I did find Blue Fire while doing some research. It's good to know that it is being used and people are happy with it. Thanks again for the help!