Knowledgebase
Knowledgebase : Support > VCM Suite
VCM Suite Version 4.xx requires Microsoft .NET Framework 4.6.1 or higher. 

You can download this version by clicking on the following link:  https://dotnet.microsoft.com/download/thank-you/net461
A Boot loader error is generally caused by a Battery or Wiring issues.
1) Ensure the battery is fully charged when reading or writing to the vehicle.
2) Review the vehicle's wiring for any issues and check your fuses.

If you do not find any issues with the battery, the wiring or the fuses, please open a Support ticket and send us the following:

1) VCM Suite Infolog while connected to the vehicle 
2) Debug file from your PC. This is located in ...Documents/ HP Tuners/ Settings
A Debug.dat file can be found on your PC in Documents\HP Tuners\Settings 


The Detect Protocol Failed error is generally caused by either noise in the vehicle's communications or an MPVI2 may need to be re-synced.


If you have an MPVI2, first ensure your computer is connected to the internet, Click "Help" and choose "Resync Interface".


If you Resync and the issue persists or have an MPVI we would suggest using a Bench Harness to read and flash the vehicle.

If you try everything above and still have an issue please open a Support ticket and  send us the following:
1) VCM Suite Infolog while connected to the vehicle 
2) Debug file from your PC located in ...Documents\ HP Tuners\ Settings

Standard V8 Rear Wheel Drive Applications (1999 to Current)

  1. Using Gear/Tire wizard in VCM Editor (Edit> Gear/Tire Wizard) Insert your new tire and gear in the columns on the right. If your tire height has not changed, enter the same value. If your gear has not changed enter the same gear value.
  2. When you have entered the correct values for your vehicle click the "Adjust" button. This will use the values you entered to determine the new VSS Pulses/Mile, Trans Revs/Mile, Final Drive ratio, Tire revs/dist values found below.
  3. When you are satisfied with your changes, click the Save Changes button on the top right of the form.


V8 Rear Wheel Drive Applications With Transaxle (Corvettes) and V6 Front Wheel Drive Applications (W Body)

  1. Insert your new tire and gear in the columns on the right. If your tire height has not changed, enter the same value. If your gear has not changed enter the same gear value.
  2. When you have entered the correct values for your vehicle click the "Calculate for New Values" button. This will use the values you entered to determine the new VSS Pulses/Mile and Trans Revs/Mile found below.
  3. When you are satisfied with your changes, click the Save Changes button on the top right of the form.


V6 Rear Wheel Drive Applications (All)

  1. To make changes enter in your new tire height (in inches) divided by your new gear ratio.
  2. When you have entered the correct values for your vehicle click the "Calculate for New Values" button. This will use the values you entered to determine the new VSS Pulses/Mile and Trans Revs/Mile found below.
  3. When you are satisfied with your changes, click the Save Changes button on the top right of the form.


Transaxle or Front Wheel Drive:
      If your vehicle has a transaxle like the corvettes, or is front wheel drive like W Bodies, select yes. In most cases this will be auto-selected for you but in some cases you may need to select it manually.


Axle Settings

  • Tire Size: Tire Height measured in inches (NOTE: this is in inches regardless if metric units selected)
  • Gear Ratio: Gear Ratio (eg: 2.73, 3.08, 3.23, 3.42, 3.73, 4.10, ...)


Speedometer Scalars (We do not recommend that you manually adjust these values)

  • VSS Pulses/Mile: This value is used to calculate the speed value for the engine routines and gauge cluster. It is the number of pulses received from the VSS sensor per mile traveled. If you know your gear, tire and location of your VSS sensor you can calculate this value manually.
  • VSS Pulses/Rev: This is the number of pulses received from the VSS sensor per output shaft revolution (used to calculate trans output RPM). It is usually equal to the number of teeth on the VSS sensor (depending on the sensor location).
  • VSS Pulses/Rev - Trans: This is the number of pulses received from the VSS sensor per output shaft revolution (used to calculate trans output RPM). It is usually equal to the number of teeth on the VSS sensor (depending on the sensor location).
  • Trans Revs/Mile: The number of trans output shaft revolutions per mile. This value is used to calculate the speed that is used for shift and TCC calculations. (A tire sanity check value is provided alongside so you can check the trans tire size calibration against the speedo tire size calibration. This is also useful for troubleshooting accurate speedo but trans shifting strangely issues).
  • Drive Sprocket Ratio: This is the drive chain/sprocket ratio from the engine to the trans. (eg. for a Pontiac GTP V6 the final drive ratio is 2.93. This is calculated from a diff ratio of 3.29 divided by the drive sprocket ratio of 1.121).
  • VSS Tire Revs/Dist: The number of tire revolutions per mile or kilometer.
  • VSS Tire Revs/Dist - Err: The number of tire revolutions per mile or kilometer. Used when a VSS Error is detected.
  • VSS Tire Revs/Dist - Trans: The number of tire revolutions per mile or kilometer.
  • VSS Tire Revs/Dist - Trans Error: The number of tire revolutions per mile or kilometer. Used when a VSS Error is detected.
  • Final Drive Ratio: The final drive (differential) gear ratio.
  • Final Drive Ratio - VSS Error: The final drive (differential) gear ratio, used when a VSS error is detected..
  • Final Drive Ratio - Trans: The final drive (differential) gear ratio.
  • Final Drive Ratio - Trans Error: The final drive (differential) gear ratio, used when a VSS error is detected..


Auto Scale Transmission tables

This option will automatically scale the transmission tables to adjust for a new gear or tire to maintain similar shift RPM's. There is also a manual scaling option where you can enter you own scaling factor to scale the trans tables up and down.

The BETA version of VCM Suite is now publicly available to everyone through the Downloads page of our Website.




You can download the BETA software from the following link: VCM Suite BETA Download


When you download the BETA version of VCM Suite, it will not replace the standard version of VCM Suite so you will have both versions on your computer.  You will have to ensure you click on the VCM Suite icon that says "BETA".

If you can not locate the VCM Suite BETA icon on your computer see the following link: Find VCM Suite BETA
If you are unable to locate either VCM Editor or VCM Scanner after installation, you will find them both in your program files.

VCM Suite is found in:      C:\Program Files (x86)\HP Tuners\VCM Suite
VCM Suite BETA is found in:      C:\Program Files (x86)\HP Tuners\VCM Suite (Beta)




To make it easier to access these programs you can create shortcuts on your desktop. 

DO NOT move the icons from these folders or the software will no longer function.

To create a shortcut you can right-click and drag the Icons to your desktop and select "Create shortcut here"


Required Processor Speed2 GHz 

Required RAM4 GB 

Required Operating System - Microsoft Windows 7 or newer

Required Microsoft .NET Framework -  4.6.1

VCM Suite has been designed to be very laptop friendly.
The PC should have at least the following:

Minimum Processor Speed - 2 GHz CPU

Minimum Ram Available - 4 GB RAM

Operating System requirement - Microsoft Windows 7 or newer

Required Microsoft .NET Framework 4.6.1

When contacting Support its in your best interest to include a VCM Suite Infolog while connected to your interface (and preferably the vehicle) in question this is to ensure that we have all the necessary info to try and effectively diagnose your issues.


To gather a VCM Suite Infolog see the following steps:

Step 1:

Click the VCM Suite Info button in both the VCM Editor and VCM Scanner programs.

Step 2:
Click the blue i to poll the software and the vehicle for info.
Note: Make sure your cable is connected to the vehicle and the vehicles key is in the ON position before you click the blue i.


Step 3:
After step 2 has completed (can take between 5 and 20 seconds) you are ready to save the info.
Click the Save icon in the info log. This is the file that you will need to e-mail us.



The x7f Negative Response Code generally indicates an issue with the communications in the vehicle.

If you have the ability, we would first suggest using a bench harness to read or flash the module in the vehicle.

If you do not have the ability to use a bench harness or the problem persists, please start a Support ticket and send us the following:

1) VCM Suite Infolog while connected to the vehicle
2) Debug file from your PC located in ...Documents/ HP Tuners/ Settings