How To Record A Data Log On EFI Live

How To Tune Your Truck With an SCT X4/BDX Reading How To Record A Data Log On EFI Live 3 minutes

Recording a data log on EFI Live

To begin, you’ll need a windows laptop with the EFI Live Scan & Tune program. Once you have the program installed, you can bring the laptop to the truck with the AutoCal and supplied cables

Step 1: Plug in the AutoCal device to both the truck’s OBDII port and USB port on the laptop

Step 2: Open EFI Live Scan & Tune and navigate through the following:

Select “F2 Scan” on the top left

A new window called “EFI Live Scan Tool” will automatically pop up. It will look like this:


Step 3: Selected controller(s)

Choose the appropriate engine controller according to your vehicle. If you are unsure of what to select, reach out to us and we can help you out. Here is a list of engine controllers in common trucks:



2001-2004 w/ 6.6L Duramax

2004.5-2005 w/ 6.6L Duramax

2006-2007 w/ 6.6L Duramax

2007.5-2010 w/ 6.6L Duramax

2011-2016 w/ 6.6L Duramax

2014-2022 w/ 2.8L Duramax


E54 LB7









2006-2007 w/ 5.9L Cummins

2007-2009 w/ 6.7L Cummins

2010-2012 w/ 6.7L Cummins

2013-2018 w/ 6.7L Cummins

2019-2022 w/ 6.7L Cummins



CMC CM2100

CMD CM2200




Step 4: Selected PIDs

PIDs (Parameter Identifiers) are what you are choosing to record in the data log. The correct PIDs must be selected so the tuner can see the issue. Depending on your truck, these PIDs will be different. You can automatically select the correct PIDs by using our dash files available on our website. Your dash file’s name will match the controller you are recording (refer to the controller chart above).

Once you’ve downloaded, click on the “Open Dash” in the program and select your dash file


Step 5: Begin the recording:

 Select “F3 Data” on the top left of the screen:

Your start, stop, and pause recording buttons will be on the bottom of the screen:

Start the recording and replicate the issue you are having.  Keep the data log around 20-30 seconds maximum, that is all the tuner needs to see to make tweaks.

If you are recording a data log at wide open throttle, begin the recording from a stop. Get up to as high of a gear as you can comfortably for 5-10 seconds, and then stop the recording.

If you are recording a data log to diagnose your 5-position switch, start the recording in Level 1 and slowly move the dial through all the positions and then stop once you are at the top level.

Step 6: Once you have finished the recording, save it on your desktop, it will look like this:

Attach this file in an email to along with your order number, and it will be sent to the tuner for review. Reach out to us if you have any questions or need any help!