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Old 10-06-2021, 10:20 AM   #1
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DP - OBDII Port - Engine Monitor - Current Recommendations - For Dummies

I have a 2008 Tiffin Phaeton 40' DP
I am getting around to investigating a diesel engine monitor
I know very little about this but am aware that they make modules that can be plugged into your ODBII port to display more info on your engine

Some may say this topic has been discussed before ... but technology changes quickly ... so I'm looking for the current info

Can you provide some guidance for the those entirely ignorant on this topic?
I assume there are a range of options from cheap to extravagant
I'm not looking to waste money but I don't want to be broken down with no way to review data and maybe ID the problem

So ... what do you recommend is a reasonable best value system?
Do you run the system full time and display it full time or is the data stored and reviewed when needed?
What is your complete system? port module, display, other?
Are there any downsides to having/running such a system?
How exactly do you utilize it ... do you watch it while your driving?
Does it have alarms?
What else do I need to know about a system that I have no clue about?
Please make your comments be clear and simple for those who are new to this.
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Old 10-06-2021, 08:58 PM   #2
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Before spending money, insure your J-port under the dash actually works. I was considering a monitor until I had engine trouble, and even Cummins could not get the J-port under the dash to work.

That eliminated using an engine monitor.
Diesel pushers do not use an OBD port, they use a J-port.
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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Old 10-06-2021, 09:15 PM   #3
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This system has many options for you, look up VMSpc
2000 42' BEAVER MARQUIS AMETHYST w/tag 2 SLIDES CAT C12 425 hp SOLD.........

2014 Tiffin Allegro Bus 37AP
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Old 10-07-2021, 09:23 AM   #4
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Originally Posted by 1doodadd View Post
This system has many options for you, look up VMSpc
I started using the Silverleaf VMSpc back in 2013 and it worked well up until this year, I was using a Sony Vial laptop for the display and it started dropping the connection I even had another Viso but I couldn't get it to recognize the Com port. So I bought a new Windows Surface Go 2 tablet and it works great. So I'll keep the Silverleaf.

But there are at least two other monitoring systems.
Scanguage makes one, that does provide monitoring info but (from what I've read) only displays 4 items at a time. Have to pick and choose what you want to see.

Bluefire is a wireless system that connects your phone or display via Bluetooth. It is similar to the Silverleaf in that you can customize your display to see what you want to see.

Right now I have mine set up to show me oil pressure, engine temp, charging voltage, transmission temp, boost, rpms, HP, and some other engine parameters.

Also have a fuel tank and trip monitor, showing fuel consumption and amount left in tank and miles to empty, very accurate.

Also has a trip log, which comes in handy on long trips, showing MPG and miles traveled.

Also have alarms for high or low voltage, low oil, high engine and transmission temp. You can choose the set points and how it alarms. This saved my bacon when something punched a hole in my radiator and I started loosing coolant and was showing high engine temps.
Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
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Old 10-07-2021, 08:57 PM   #5
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Excellent… thanks
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Old 10-07-2021, 09:43 PM   #6
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DP - OBDII Port - Engine Monitor - Current Recommendations - For Dummies

I have a Scangauge D to monitor 4 vitals of my choosing at a time . I think I paid $110. Picture below shows it on top of my dash. I bought it mostly to keep track of fuel mileage, but itís easier to read my oil pressure and temperatures at a glance than my pretty but hard to read analog gauges at night.

Havenít had to use the code reader yet and I think when it displays a problem code you have to Google the codes to find out what they mean.

Silverleaf and Bluefire are more high end.
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Rob & Laura
2002 American Tradition 40', 431hp Banks PowerPack
Mid-South TX
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Old 10-07-2021, 11:09 PM   #7
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I am a former long time user of the Sliverleaf VMSpc system, but made a change to the BlueFire app which I personally much prefer.

The following links should answer most of your questions as they pertain to the BlueFire app.

BlueFire Overview

BlueFire Getting Started document
Bob, Sherron & Kinsey (Goldendoodle)
2017 Tiffin Phaeton 40QBH
2014 Jeep Cherokee Limited
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Old 10-17-2021, 07:37 PM   #8
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Same as Rob_M Scangauge D reasonable price and gets the job done!
2003 National Tradewinds LTC 7374 FL XC-Chassis IFS, Steer Safe, 8.3 ISC 350 Cummins, 3000MH Allison, 2015 Equinox, Blue Ox Tow-Bar, Brake Master Air Over Hyd
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Old 10-17-2021, 09:29 PM   #9
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Just picked up a Scan Gauge D and it seems to do what I wanted it to. Reads Codes and can display 4 parameters at once but can chose more if desired.
As with most analyzers you have to search web for what coded is what and even then they don't always tell you what's happening. Good Luck
Jan & Marvin (The Aussie Pups- Mars, Sage)
2002 Monaco Cayman- 5.9 ISB 275hp Cummins
2000MH Allison Transmission
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