VMSpc Engine Monitoring for PC.

VMSpc runs on Acer Aspire W510

I have just successfully installed VMSpc on the Acer W510, using the legacy circuit board with a USB adapter. Other than having to download the driver from FTDI and change the VMSpc port from COM1 to COM3 (presumably an artifact of the adapter driver) no problems. What a program! Now all that's left is to rearrange the gauges to the format we've been using since 2005 ...

Running VMSpc on a Surface Pro

The folks at Motorhead Garage did a segment on our VMSpc product recently - you may have seen it on the Velocity Network. For that video we installed VMSpc on a Surface Pro. I thought the results were excellent, and I ended up making the Surface my personal machine.

Installation was easy using the newly Signed Drivers.

I found a lot to like with the Surface Pro. The screen was sharp and bright - especially if you keep it plugged in so it doesn't try to save power. The form factor is different than the other pads - it's taller or longer, depending on how you look at it. I made some custom screens, but I found that it was easier to do this using the touchpad than by trying to use the touchscreen, even with the stylus. There is also a little glitch in Win8 where if you turn the unit so the screen switches portrait/landscape mode, and then back again, it doesn't restore the window to the full screen size. But I expect that Microsoft will fix that glitch.

Overall, I really like the Surface Pro. I own an iPad and two different Android pads, and the Surface is easily superior to them all. The only advantage the iPad has is battery life, but the Surface is faster and runs all the software I need to run. I also prefer the Surface form factor. What really surprises me - I generally dislike Microsoft products and I heard a lot of Win8-bashing before I bought this machine - is that I find it easier to use than the iPad.

I still make a lot of use of my Netbook - mainly because it has the best keyboard. I also use an Android pad a bit, since it has by far the best battery life. I occasionally bring along my full-sized laptop, but only if I know I am going to need it for some serious work. But the Surface Pro is now my main road machine, and I have hardly touched the iPad in a month.

VMSpc on netbook Win 8

After some effort with port problems, its running fine. But the gallons used and mpg are off.

I am getting ~ 8 mpg but VMSpc says I am getting 6. It says I used ~ 55 gallons, but when I fill up it only takes 42.

Is there something I am missing, or is this an indication of problems with data sent to computer read out?

VMSpc sniffing over WiFi


I have a Blue Bird Wanderlodge LXi.

I'd like to add additional sensors for my VMSpc to display but I'd prefer not to tap into my J1587/J1708 canbus.

Is it possible for VMSpc to receive another datastream over a WiFi UDP/IP port? I'd like to use arduino's or similar to monitor my sensors and format the data into J1587 packets. Then I'd like to transmit the packets wirelessly over a UDP/IP data stream.

The question is, can VMSpc receive and parse another canbus stream (J1587) over my computer's WiFi (802.11) network? If not, can it be modified to do so? This would be really helpful for those of us who wish to add additional sensors but don't want to tap into our existing canbus.


Another Connector??

I had a 2003 Holiday Rambler with Cummins ISC (315HP) engine until recently when we got a 2009 Tiffin with a Cummins ISC engine (360 HP). I expected my VMSpc USB JIB to fit our newer engine but the plug is different!
What are my options?

Diag error message where do I find info

I get this message and the local cummins/Allison shop says good guess no idea.

Diagnostic History File
Feel free to add notes to this file, but do not move or delete.
TRN SID 151 14 UNKNOWN COMPONENT Special Error 4/ 7/13 10:06

VMSpc screen arrangements

I am starting a new installation of VMSpc on a new (to me) coach. I will be running it in combination with DeLorme TOPO using a split screen for VMSpc and TOPO (active GPS).

Have you ever though of posting different examples of screen layouts that other users have developed and are using? It would be a big help to see how others have arranged their screens, rather than have to reinvent the whole arrangement. For the record, I will be running using a Dell 17" laptop and WINDOWS 8.

Second question: Is there a list of all the available data functions which the VMSpc can display for the Detroit series 60 and the Allison 4000 combination. I'm one of those who likes all the data rather than minimal data.

Will there ever be a version of VMSpc for the iPAD??

I would like to see a version of VMSpc that runs on an iPad.Is there a chance that this will ever become a reality? Even better still would be a VMSpc Kit that would connect via bluetooth.

I would gladly purchase a new kit to get the bluetooth connection.

keep the maintenance program on my desk top at home.

Scheduling and remembering all the many maintenance item due-dates has, in the past, just about driven me to distraction.
I have tried card files, calendar notations, post-it notes, asking my Lady to help me remember, notes on the palm of my hand, ( the worst idea by far), and Silverleaf’s VMSpc program, all with less than satisfactory results.
About fifteen or more different maintenance task’s with number of hours or miles or six month, one/two/three or four year intervals was way too much for me to track and I was always playing ketch-up with some maintenance chores that had sipped by without my noticing.
The VMSpc program maintenance section is a good start but I keep the pc tablet mounted and hooked-up in the coach, in the garage 12 miles from home.
I do 90% of the maintenance when we are home in the winter.
I realized that the VMSpc maintenance section needed to be installed on my desktop pc at home.
Then I arbitrarily converted all the hours and miles requirements to calendar months. A lot of the maintenance items have mileage/time notation, whichever comes first.
Then I tweaked the due dates in the program to group various tasks too when I wanted to do them. A few in October, some in January and in May to get the coach ready for a long and easy summer road trip without any forgotten maintenance issues.
Now my home pc lets me know what maintenance is coming up and I can order the parts and fluids at my leisure and schedule my time to get the job done when it’s good for me.
Life just got a lot better around my house and garage.

"Cummins ISB XT (360 Hp)" and Other Engines, now avaliable for Download

We have available to download and add to VMSpc, the Torque and Horsepower specs for the Cummins ISB XT (360 Hp).

Other Engines, including the Cummins ISC 380 are included in this Engine Update file, VMSpc_Engines_20130129.zip.


The future for VMS is to run on Android devices. Is this a reasonable expectation?

CAT 3126 250 HP PID's (Oil)

I am a new user (bought VMSpc at Indio on Friday, got different cable on Saturday). When i used the new cable, I got information to populate the screen. I did not notice at that time the Oil Pressure and Oil Temperature were reading zero. When I look at the parameters for those guages, they show 100 and 175. When I run PID sniffer, I do not see any listing for Oil Pressure or Temperature. Suggestions please.

Al Wilson

Turbo boost question

Can someone explain what the "turbo Boost" and "Turbo Boost extended" functions are? what are they used for, and are they typically one of the more important readings?

VMSpc messages

I created a message for the cruise on VMSpc however it does not work correctly. "Cruise off" message is set to "match" 0.0. "Cruise on" is set to "match" 1.0 and "Cruise Set" is set to 129.0. Each value is the value displayed when a "cruise status" gauge is built. Can you explain at what state each message is "true" and does the message diplay when "true".

Windows 8 and VMSpc Drivers

I am having trouble getting the VMSpc drivers to load(install)on a new computer with Win 8. Anyone have any secrets?

Windows 8 Tablets

Will the VMSpc software and interface work with the USB port on the new Windows 8 Tablets?
I almost went to the Android Tablet and Bluetooth a while back, but held off in hope that the new windows tablets would be a cleaner option.


If these are boolean values then why does a simple gauge that displays cruise status show a real number,"o.o"?

j1939 diagnostic plug

on the j1939 9 pin diagnostic plug what do i connect the data common to?

Does CAT 3208T have the electronics necessary for VMS?

My 1990 ForeTravel is powered by Cat 3208T (250) via an Allison 4 speed. What I want mostly, is the fuel consumption data. Can it be done without replacing the engine ?

New Laptop totally shuts off when turning ignition on with vmspc


i have run vmspc for years on 2 different coaches. i have been running it on a lenovo thinkpad with windows 7 ultimate just fine.

i have the newer version of the JIB with built in usb

i just bought a new ivy bridge laptop the lenovo ideapad y580. i installed the vmspc software and set it up.

used the 64bit drivers from this web site to load the usb drivers.

they loaded up fine and when i plug in the usb cable for the vmspc box they see a new device and finish installing the drivers succesfully.

then i plug the vmspc into the coach still ok. as soon as i turn the ignition on, the laptop shuts off completely. will not reboot unless i turn the ignition off.

before the ignition is turned on, the green light is steady on the vmspc box and the red light is flashing.

i am very perplexed. please help me.

btw, all my other usb devices work normally on my new laptop and i did try the various ports on the laptop and it shuts down no matter what port i use for the vmspc.


Cruise Set Speed not always showing

For 5 years I used a VMSpc serial to USB product. I recently upgraded to the VMSpc USB product. Nothing else changed and I am using it with the same Windows 7 Laptop.

Cruise set speed will only show the set speed occasionally. I can find no pattern of timing when it will show, or how long the set speed will be indicated. When the set speed is not shown, I only see ‘0'.

So what is the problem?

Rex Darley

PID 190

Does anyone know what pid 190 means. I have a Cumming 275 isb. Cummings does not know what it means, not a Cummings code. My email is hymes3@sbcglobal.net

PC connection failure

Hi, I'm a brand new user of VMSpc.

The problem is that VMSpc will not recognize the connection between the Laptop and the JIB, giving PC to JIB failure message.

I have just installed VMSpc on my older Dell notebook computer running Win XP. This is a minimalist business laptop sporting one serial output and one USB output.
During installation, the pc did not recognize the USB interface to the jib, so I installed the x86 drivers and Win XP recognized the interface, verified by Device Manager which assigned Port 10 to the vmspc usb to jib connection. Verified that in Communications and hit "find" and then "restart" the port.
VMSpc will not open the link to the JIB. I follow all the recommendations for making the connections in the right order. I have uninstalled and reinstalled.

Any suggestions as to how can I trouble shoot this?

Mike Dyer

P.S. it Does work on another Windows 7 laptop that is too large to be placed on the dashboard. So, the JIB and the USB cable are both fine - it's confirmed to be a software/driver installation problem.

Windows 8

Windows 8 appears to work correctly with the latest USB version of VMSpec. I am using the TechNet Professional version of Windows 8 on a Lenovo touchscreen Netbook. Windows 8 runs great on this netbook, and is at least two times faster than the current Windows 7. I have had no trouble with VMSpec using Microsoft's latest operating system. Windows 8 actually lets the old 10" netbook run like it should have ran when it was released with XP.

J1939 Transmission Data

I have a 2006 Monaco Windsor with the Cummins 400 ISL. Under the dash is the 6 pin diagnostic connector. As is well documented on this site, no transmission data is revealed by VMSpc when the 6 pin port is used. If I understand these systems correctly, the transmission data is sent over the J1939 bus and the J1939 data lines are not present in the 6 pin diagnostic port. Inside the dash there appear to be other electronics that use the J1939 data lines - the Beede Instru-Link and the Aladdin J1939 Bridge. Can I simply tap the J1939 data +/- lines and supply these to pins 5 and 6 on the VMSpc module?
Another possible solution may be in the foreward electrical bay driver's side foreward outside. There is a 9 pin diagnostic port labeled 'TRANS'. This would be a little more complicated routing from outside the coach to inside.
On this coach the 12v power is constantly on at the 6 pin port and switched at the 9 pin port. Can the 12v power to pin 7 of the VMSpc be derived from any convenient switched source instead of coming from the diagnostic port?
What is the purpose of pin 8 (Headlight Switch) on the VMSpc?


switching from notebook PC to android tablet

Will the VMSpc JIB drive the new bluetooth module? (Note: I have the orig JIB w/RS-232 D connector). What do I need to make the switch from a notebook PC (Windoze) to an Android tablet? My motorhome is a 2004 Freightliner XC chassis with a Cummins ISB2 & Allison 3000 trans.

interpreting Diagnostic History File

I have had several Stop engine light events that only last about 5-10 seconds and then go out. On printing out the Diagnostic History file I get a lot of information that should be useful if I can find what they mean.
The heading information that are obvious are ENG, TRN. What does the heading SRC and MD mean? I assume TPE is type, is that correct? What do the following codes mean, SID, PID and SPN? When it prints out ID codes that are not Cummins or Allison codes where do you find the information to interpret the codes. I have had several 5 digit codes that Cummins and Spartan don't have information on. They are 64208, 24287, 25983, 93567, 6, 1656, and 2047 among many others. My engine is a Cummins ISC 425 with an Allison 3000MH tranny. Any help getting this information would be greatly appreciated.

93 Eagle DDECII / Allison B500 World

I have a 1993 Eagle Bus Conversion with DDEC II and an Allison B500 World. I purchased the JIB with pigtail from RVUpgrades a few weeks ago. I'm getting the dreaded PC Port Failure and Failure Between JIB and PC. I don't have a 6 or 9 pin connector so I'm connecting to the Chassis ALDL. The power to JIB is switched. Its "Ok" in Communications dialog until I turn on the Ignition switch. I have 13.5v on red (when ignition switch is on), black is grounded. White wire is fluttering at 4 volts and green at 1 volt. I'm using the J1708 wires on the pigtail. In VMSpc it cycles through Starting, PC Port Failure, Ok, then repeats in communications dialog. Eventually I'll see the Failure Between JIB and PC. I have green light on JIB. Red light blinks twice at a 1Hz rate then waits 2 seconds and repeats. It behaves the same on two different laptops running Vista. I've searched the forum and checked everything I can think of. Attached is one of the raw logs I captured rawlog3.zip. Hopefully that will help pinpoint the issue. Thanks in advance for reading and any suggestions you may have.

Fluctuating voltage

While driving my voltage showing on VMSPC fluctuates from 13.2 to 14 volts. It reads 14. - 13.8 - 13.6 - 13.4 - 13.2

Each voltage seems to hold for about two seconds.

It is pretty regular and I am wondering if it is just the nature of VMSPC or do I really have such a wide fluctuating voltage while driving?

Oil Temp on Cat C7

I cannot get VMSpc to read Oil Temp. Any suggestions?

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