VMSpc Engine Monitoring for PC.

Remote monitor vs. Mini notebook

I'm reinstalling my VMSpec after several years of a hiatus and am totally not up to speed with the latest developments / options. A couple of questions.

My label says
JR501 J1708/J1939 Interface
hw 1.00 sw 1.05

Do I need to reference anything special when posting to the forum ? Is "JIB" version significant ?

Next, where's the best spot on the forum to view users set ups to see how best to install with the latest mini lap tops and remote monitors. I have this fantastic spot in my dash (shown) that I deliberately left for installing a remote screen. What screens are recommended for this in dash set up and are they touch or regular ? I'd like to stow a dedicated mini lap top out of site if others have set it up this way.

The 2nd option would be a folding / convertible tablet or mini computer that I mount to the left of the dash on a stand I can fashion but the issue (a few years back) with this idea was that no lap top let the screen lay all the way flat and parallel with the keyboard. Lenovo makes a 10" model called Flex that now solves this problem so I'm deliberating between the remote, in dash, screen and the Flex. Suggestions or pitfalls with the remote screen from users or admins welcomed and wanted. I guess I'm leaning toward the Flex and may have answered my own question but I've not been following the forum and am not sure what other options have come out lately. Thank you.

PC port failure

I am running VMSpc 4.0.4 on a HP Pavilion with Windows 8.1.

I have found a few threads discussing this problem, but none of the suggestions help. My device manager shows that I have only one port, COM1, but the Communications dialog seems to think there should be a COM3 and tries to use it. I have tried to update the driver via the device manager, but it indicates that the driver is up to date.

Has anyone else had this problem? Do I need to get an update from Silverleaf?

Here's a Great Example of One Man's VMSpc

Here's an excellent example of how one man, Scott Hicks, has set up VMSpc to work alongside DeLorme on a 2003 Tradewinds.
Scott's using a Jotto Desk to hold the laptop in place.

You may post your questions on our VMSpc Forum or e-mail us here.

PID 120 Multiplier & Offset

I have a 2000 Foretravel U-320 with the Allison Retarder. I added the retarder temp guage and it seems to work fine with one major exception: the numbers are low. Example: After being parked for two days I made the following reading in the morning: Outside temp: 57, tranny temp: 59, retarder temp 29. I would expect them to be about the same. Another reading cruising on the level without recent use of the retarder: Tranny temp: 170, Retarder temp: 109. When using the retarder the temps rise and fall as expected.

I've plotted all my readings and find that if I use a multiplier of 1.5 and an offset of 16. My corrected values are reasonably close to the expected values.

Is it reasonable to have to use these values for the multiplier and offset?

Cat ECM codes

I have 4.0.2 installed on an HP laptop. The coach is a 2000 CC with 3126 Cat engine. Will VMSpc display engine failure codes when they occur? I'm having some intermittent engine issues, but the green No Errors Reported box never changes. Do I need to go to a mechanic and have him plug into the diagnostic port at the back of the coach to pull codes?

No Check Engine light either.

Lost my Total miles

LOST My total miles and Odometer readout? I know I had it when I first started it up. How do I fix???

Software v4.0.3 Feedback

Version 4.0.3 software has been replaced with v4.0.4. See the updated feedback thread for updates.

Feedback has picked up, so far, it has one absolute show-stopper: PressurePro. As this is a must-have, we're picking up the pace on v4.0.4. Goal is to have it released TODAY (5/12.) See The Forum Topic: "4.0.3 Buglist" for the 'Known Issues' and 'Adds.'

Another gotcha, however, on some Windows-10 systems: Windows Defender. It may, or may not, cry foul during installation on the uninstaller. We've verified its a glitch in its heuristics, not the software. For the time being, disable Defender, download (or re-download) the distribution disk and install. Re-enable Defender afterwards.

Windows-10 is acting wonky with our WiFi Jibs. It will randomly disconnect or persistently drop the data connection. Not sure of the root issue--yet other mfg's are having this problem too.

Here's your chance to weigh in on the bug-list.
--Doing so will help us all keep track!
1. State the type JIB you're using and diagnostics connector type -and-
2. Frame your point in one of two categories:

Something is broken/ missing and preventing basic functionality. A feature (small or large) is unusable because of a glitch of some sort.

Aesthetics, look, feel and additional functionality. Or, maybe it works but the logic is...not...logical.


Art Renda
Documentation Central
Silverleaf Electronics
(888) 741-0259

Camera inputs to VMSpc

I just ordered my VMSpc cable and awaiting its arrival. Art mentioned something on the phone about having events for pulling up different camera inputs and wanted to clarify. Is that just with the Glass Dash, or can I run my camera inputs through the VMSpc software to also integrate new turn signal cameras along with my rear camera. Is it possible to have the video as the background of the gauges similar to the VMS440 or 330? I ordered a video to usb capture device that will hopefully pull up the video signal as a webcam source and I am hoping that the software will have this feature already integrated.

v4.0.4 Software Buglist (closed)

Please give feedback and post your bugs on the Software 4.0.4 Feedback and bug fixes Page. Thank you !

..........known Issues..........

FIXES (needed):
1. Win-10, Defender gives us the boot On install, if program 'sits' idle without being installed, Defender boots it out. Install program is not the problem, Defenders' 'Heuristics' are flagging us as a maybe. (In Work)

2. Help menu item, needs a link to FAQ and Website. Link to manual works. Working on a 'boiler plate' which will consistently work on OS XP ~ Win-10)

3. Win10, WiFi Dropouts after ~45 min. Mouse-trick didn't work. Other method to prevent interruption? (Looking for root-cause)

4. Odometer "day one" odometer isn't day one. It starts from whatever date I create it.

5. Gauge Flicker J1708 & Serial JIB, 'red' values periodically, ~1/10th sec --Otherwise okay. See #7

6. Gauge Focus, on startup A random gauge is on focus. Should be none or, barring that, the same one each time.
(Problem identified--solution is...not so easy...)

7. Max Gauges: Spikes hurt! Any little spike (as displayed) also hits the Max with artificially high values. Parsing or Rule situation? (Still hunting for cause)

8. Color Palate (XP): Palates won't work unless 'Unique' is checked. Themes are broken. (In Work)

9. Full Screen (XP): Wonky. Eliminates top bar (which is fine) but then moves everything UP, not full screen. Bottom space (size of top-bar) remains blank. (In Work)

10. Incorrect Folder (Name) creation : Upon installation, folder name is 4.0.3 (prior build).

11. Engine File Access: When selecting an Engine File, user is taken to My Documents. Should be: C:\VMSpc[build]\VMSpc\Additional Engines

12. When playing .WAV file: the system stops responding and goes into a prolonged reset mode to recover control. .MP3 seems to work as required. [Win-10 x1 ]

13. Alarm set values: Will not save any values such as above/below, how many times the alarm sounds. After setting these values and hitting save, they are returned to the default of under and 70.

14. Full Screen: Under Win-10, Tablets: Long background press does not ESC from Full screen. Special button needed?

15. Trans info: Gear Attained missing on (new) J1939 chassis. We see a 'blank box' for gear attained. Worked on v2.5, 3.x and maybe 4.0.2. [3x samples]

16. Custom Color and Touch Under Win10 Tablet (without keyboard), cannot select custom color on Tank Minder. (sample = 1)

17. Tire Status; Learning Mode This times-out in 20~40 seconds rather than a reasonable 2 or 3 minutes. Need to increase this to 3 min

18. Tire Status; Presets & positions Tires Populate wrong. When re-opening Tire Status, grid auto populates with '0's for all possible positions. This carries over to the Status Gauge, filling it completely out with 0s'.

19. Maintenance List; functions correctly but displays "0" (mileage) interval while doing so. should read 5000 or 10000 or whatever the interval is.


Exhaust Manifold PID for Cat 330 #3126

I have just installed a VMSpc in my 2001 Airstream Land Yacht XL390, Cat 330 Turbo, engine #3126. I do not see a PID for Exhaust Manifold in the software. Can anyone shed some light on this for me.

Software 4.0.4 Feedback and bug fixes

v4.0.4 was released Early May 2016 and replaced by v4.0.5 in Mid June 2016.

4.0.3 Bugfixes:
2a. Help menu item, About, needs to reflect new Rev level.
==Fixed this.

2b. Help menu item, Added a link to the manual, still need link to FAQ, website. -in process, manual link may still need more work. Works on Win-7; others?

3. Communications, re-enable the 'Hello' WiFi section.

4. Layout Saves, does not always autosave all changes. New gauge won't save. Theme change does. Resize/ Move does.
==Couldn't consistently repeat this or find problem. Need more info on computer OS (7, 8 or Win-10)

7. Audible Alarms .wav works, .mp3 does not.
==All audio files need to be placed in VMSpc root folder to work.

9. Alarm Test Program freeze on test of a .wav
(Win10 USB, sample = 1)
==A missing file was fixed yet Win-10 'in the wild' still report freezes; local machine does not.

10. Diags Gauge, Properties box: Only static color, 'other' is broken.
==All color buttons and styles fixed (custom colors).

11a. WiFi Settings; wrong default address. Never connects to VMSpc. Rebuild using as default.
==Fixed this to correspond to correct address.

11b. WiFi Settings, note on AD-HOC to use . This should read "AD-HOC or AP mode use ".
==Fixed wording to be helpful.

14. TPMS: Something broke. Now not working. [Thanks user 'Steve' !! ] This **IS** a show stopper...so, building a new version just now.
==Misplaced a line of code: moved it. Fixed.

15. Engines: Defaults to looking in My Documents. Should be looking in C:\VMSpc(build#)\vmspc\Additional_Engines\
==Not consistent across platforms. Maybe fixed.

Occasional message

I just got my VMSPc set up with my 10" Lenovo tablet. Much easier to read than the analog gauges, and so much more info. I am getting an error code that reads "ENG PID 94 92 Fuel Delivery Pressure Abnormal Change".
The engine was just serviced and they replaced a sensor on the engine. They said that no other codes were being thrown. The coach seems to run great.
What does this code mean?

Laptop screen goes blank

I have a strange issue with VMSpc on my laptop. If I have the program running before I start the engine it works until I start to crank the engine and then the monitor will go blank and it losses connection to the JIB. When the engine starts I have to restart VMSpc, then it's OK. I have the communication set to restart in the advanced setting. This has been an issue since I upgraded to Windows 10. Does anyone have a suggestion? It's a Samsung Laptop. Thanks

Transmission display only shows gear attained, not selected

Running VMSpc v4.0.3 on 2014 Phaeton ISL380. Selected ISLe380 engine type. Transmission shows 2 question marks when not connected. When connected only shows gear attained, not gear selected.

Standard VMS Features

All VMS™ models - from the incredible VMS-755 Glass Dash to the budget-minded VMSpc - all support these incredible features. All gauges are digitally accurate, with readings taken directly from the engine and transmission for ideal accuracy and relevance. You can't get better instrumentation than a VMS™.

Digital Engine Gauges
Accelerator Position
Battery Volts
Cruise Control Set Speed
Coolant Temperature
Engine Load
Fuel Rate
Instantaneous MPG
Intake Manifold Temperature
Turbo Boost Pressure

Additional Gauges - Dependent on Engine Model
Fuel Injection Pressure
Fuel Temperature
Oil Pressure
Oil Temperature

Performance Analysis Gauges
Horsepower Output
Power Factor
Torque Output
Rolling Miles Per Gallon

Transmission Gauges
Requires Allison 6-Speed World Tranmission
Gear Selected
Gear Attained
Mode (Economy / Performance)
Shift Inhibit / Do Not Shift Condition
Torque Converter Status
Shaft Speed

Professional Electronic Diagnostic “Scan”
Automatic Diagnostic Recording
4096 Event Memory Capacity
Plain-Language Code Translation

Trip Features
Trip Miles Per Gallon
Trip Miles
Trip Time Elapsed
Trip Fuel Consumed
Trip Average Speed
Trip Miles Remaining
Estimated Time of Arrival
Estimated Fuel Required
Trip History with 4000 Trip Capacity

Other Features
Maintenance Tracking
Pre-Drive Checklist
Engine Odometer, Hourmeter, Fuelmeter
Engine Identification
Cruise Control Troubleshooter
Cruise Monitor
Trouble Monitor

VMSpc is not seeing Com Port

Installed VMSpc 3.5 after installing Drivers on a new HP Tablet running Windows 10 Home. Added a Com Port 7, but VMSpc does not recognize Port.
Seems that on a previous install on Nextbook 8.1 you had me change some port settings to get the port recognized by VMSpc. Do those values/settings appear on Forum?

Pat Coleman

Recent MPG and rolling MPG not working Cat 3126(330hp)

I am using VMSpc 3.1 build 3 and I never had any problems since I bought the software. I went to Caterpillar for maintenance and the updated the software of the engine for the most recent one.

Since that update I cannot see any recent MPG (pid 502) also rolling MPG (pid 9). I cannot monitor the mpg in the trip , what is left in my tank, nothing works for trip management.

Is there an update for this engine? or there is something I have to do to make this work?
Need help

Thank you

Downloading VMSpc

I am having a issue withWindows 10 and downloading VMSpc. I have also on the PC WinZip Version 20. Not sure how to use this along with your instructions. WinZip seems to have a mind of its own. Please help, I miss not have VMSpc on our travels.

Is there maybe a problem with jib.

Hello I have been working on the coach to fix my abs. Went to hook up my computer to the coach and it wouldn't communicate with the computer. Port failure. When in and downloaded the program on another computer. The computer doesn't have a cd rom . Won't work with that computer either. Seen on this forum that it could be the cable from the jib. We replaced the cable. Didn't fix it either. Thinking it might be the jib. Help john

My laptop Won't talk to the jib

I'm having a big problem with my laptop not talking to the vmspc. The jib is not communicating. I have two laptops and both don't work. Both run windows 10. I have had this system for 4 years too. Working when I took it out of the coach last winter. I replaced the cable from the jib but that didn't work. I am not the greatest at computers but do know enough to be dangerous. Thanks for any help in advance. John

Failure while driving down the highway

After using VMSpec for over four years without incident, it stopped working midway on my trip yesterday. I tried the usual, unplug, re-plug, reboot routine, it still didn't work. I went to the FAQ's and everything pointed to the USB cord being defective. I swapped it out with my printer USB cord and now it is working perfectly again. Just wanted to say thank you for the FAQ's that allowed me to properly diagnose and fix my problem. I felt lost driving without it.

Re-release of version 4.0 software?

I am about to load up a new windows 10 tablet with the VMSpc software and was wondering if the latest 4.0 version is ready for release again?

VMSpc Screen Sizing

Is there any way to re-size the entire screen when transferring from one laptop to another? When I tried to view my custom screen that I created on my smaller laptop, some of the information blocks were cut off. I know I can re-do each individual block, however I would like to be able to re-size, the entire box proportionally without redoing the entire layout.

Powering a tablet

Using a HP Stream 7 tablet with windows 10.1. Seems to work just fine, but not trying the tank minder, which I miss. But that is a fix for another time.
Problem today is tablet runs out of battery power at about 3.5 hours. Reading the silver leaf manual I see, " For extended Tablet use, charging may be done employing a "Y" splitter or "Powered USB Hub." The splitter for use with a micro-USB are less tedious and cheaper."
Splitters I find on the net appear to be provide power to 2 devices, not input data and power into one device.
Art, to make my life simple, please provide me the name and model number of a splitter that will input data to the tablet, as well as charge the tablet. The HP stream has only one micro USB port.
Thanks, Richard

Arts screens - a test

Attached is a 1379x722 screen with no Tank Minder or Odometer gauges. Its important to remove those before uploading as they are coach-generated and could confuse another computer.

The image above is a screen capture ( alt+PrtScrn ) of the VMSpc window. I reduced it to 6oo pixels wide to keep it to a reasonable size--AND within the frame.

Also, the .SCR extension was changed to .SCReen as Windows/ Antivirus would have prevented this from being downloaded. Named as "MyGauges.SCReen" it won't get filtered out as a potential virus or other threat--but that means also you'll need to rename it (after downloading) with the .scr extension.

Mode Gauge?

I will be using VMSpc next week, and have begun building my screen. Somewhere I recall seeing a layout with a Mode indicator. That would be useful to me, but I don't see one listed in the drop-down menu or on the PID descriptions. Does one exist? How do I add it?



Soon to be VMSpc owner


Starting the shopping for VMSpc components.

My proposed install:

Mount: Approx 6-8" screw mount extension from left windshield post. Looking for a mount that is solid and doesn't have the "clamp fingers" wrapped around the screen (i.e., is model specific so it somehow attaches to back of tablet, snaps around the edge, or at least has very short fingers, looking for something that doesn't look temporary). There are so many mounts out there but I have yet to find something that will work for me. (Attachment shows proposed mount in yellow and tablet in red). I realize mounting in a "cantilever" fashion from the post may lead to a little vibration (which of course I do want to avoid) but I'm trying to avoid drilling the dash behind the proposed tablet location. My plan is to install as-if this was just something that came with the coach, not considering using tablet for any other purpose (already have laptop/smartphone/GPS/etc....) unless I should be considering something I'm not. Can't use stick-on dash disk as position of tablet would be too high and would interfere with view of left mirror.

Tablet: 7" Windows based (largest I have room for). Dimming and "sleep" issues seem to be considerations based on what I've read. What ports (e.g., mini/micro/full size USB, memory card, etc) and features (WiFi, bluetooth, etc) should I be looking for, for both power hookup and VMS attachment? No idea what brands to seek/avoid.

Connection: Hard wired for both power and communication with port. Prefer avoiding connect/reconnect issues unless I can be convinced otherwise. Don't mind powering unit on/off manually (in fact, would this be preferable?)

I've spent some time on the phone with the Silverleaf folks, and will again, but would love input and ideas from users.


Screen lay-out

While looking through "VMSpc Gallery of Installations" I have noticed several screens that are displaying the "Date" in the same box as the "time" is displayed. Where or how can I find the "Date" to instal? I am new here and will be learning with every expedition. Thanks Gerry

False Reading

I have a 2000 Fleetwood Discovery with the Cummins 275ISB and have used VMSpc for years (Currently v3.0 Build 1.) I'm getting the following diagnostic code:

ENG SID 65 7 Heated Oxygen Sensor Not Responding 10/28/15 9:56

The problem is my engine does not have a Heated Oxygen Sensor.

Is there any way I can find out what this failure code is really referring to? I've noticed in the past that VMSpc codes don't always correspond to Cummins diagnostic codes.

Thanks for any help.

Pat Curry

should I download a upgrade as I have vmspc v2.5 b10p

I have had this system for 5 years and just upgraded my 2010 computer to windows 10. I did get the motorhome to talk to the system and was wondering if I need a update to a better upgrade??? Thanks in advance for any help.

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