Step-by-step HP Tuners DIY unlock and tune install instructions for L5P / L5D Duramax (PDF).

How to read the stock file and perform the ECM unlock on an L5P Duramax with HP Tuners.

Phone-only guide to install the Tune Delivery Network (TDN) app, pair your RTD/MPVI, join with the invite code, and read your stock file (PDF).

RTD4 handheld guide: pair with the TDN app, read your truck, write the tune, and log data. Includes the OTA update warning (PDF).

Laptop guide using VCM Editor and an MPVI4: pull separate ECM/TCM stock reads and flash your finished tune file (PDF).

How to pull and save a VCM Suite Info Log from VCM Editor or Scanner using the blue "i" button (PDF). This is not the stock read.

Step-by-step: plug in the AutoCal, license the ECU, and flash the tune on a 2011-2014 LML Duramax (Word doc).

Prep, read, and flash steps for LB7, LLY, LBZ, and LMM Duramax with an AutoCal (Word doc).

How to reformat your Spade to clear all tune, read, and scan files and restore missing folders (Word doc).

Update BBX settings on your Spade using EFI Live V8 Scan and Tune (Word doc).

Step-by-step passthrough data logging with EFILive V8 Scan and Tune (Word doc).

How to datalog your truck with a Spade — controller selection, recording, and playback (Word doc).

How to pass-through read a stock file from the ECM with EFILive V8 (Word doc).

License and flash a tune via pass-through when the Spade cannot flash (Word doc).

Add more VIN license slots to your Spade using a convert code in EFILive V8 (Word doc).

Generate the auth code to order a VIN license and add it to your device (Word doc).

How to link or unlink an AutoCal device using a convert code in EFILive V8 (Word doc).

Record data on your AutoCal and send the log file back to us (PDF).

Read the ECM and TCM stock files with your AutoCal and email them to us (PDF).

Open your emailed .bbx file and program the Quick Setup to your AutoCal (PDF).

Flashing steps, fuse removal for 2001-2005 Duramax, transmission tuning, and hard part control (PDF).

Find your device serial and generate an auth code, then apply VIN license activation codes (PDF).

Power levels and step-by-step SOTF (Switch on the Fly) installation for 2011-2016 LML Duramax (Word doc).

Power levels and step-by-step AutoCal tune flashing for 2015-2016 LML Duramax (Word doc).

Read stock, flash tune, and switch power levels for 2006-2009 Cummins 5.9L & 6.7L (Word doc).

Unlock file flash and tune install for 2010-2012 Cummins 6.7L (Word doc).

PCM unlock procedure and CSP4/single tune install for 2013-2017 Cummins 6.7L (Word doc).

Tune spec form template for 2010-2018 Cummins — year, transmission, power level, intake/injector/pump, and VIN (Word doc).

Pin swap at the OBDII connector and Star connector plug-in for the 2018/2019 Ram Cummins bypass cable (PDF).

Required PIDs, how to record a short clean log, and how to send it to the shop (PDF).

First-time setup and file install: plug in the Auto Agent, accept the technician, write the file, and read file names (PDF).

How to run the "Replace TCM" special function in VCM Scanner before and after swapping in the HP Tuners unlocked TCM (PDF).

Reference photo showing which fuse to connect the E41 unlock cable wire to: Fuse 57 for 2017–2019 L5P, Fuse 78 for 2020+ L5P (image).

E41 ECM upgrade kit procedure: cable and fuse install, reading and writing in VCM Editor, uninstalling the kit, plus 2017–2023 fuse locations (PDF).

How to read and save your stock file with HP Tuners.

Walkthrough of reading your stock file before sending it in for tuning.

How to perform a VCM read for your vehicle.

Walkthrough of performing a VCM Suite read to capture your vehicle's calibration data.

Full walkthrough of using HP Tuners VCM Suite to read, edit, and flash your vehicle.

Walkthrough of writing (flashing) a tune file to your vehicle with HP Tuners VCM Editor.

How to actuate Shift On The Fly (SOTF) on 2022–2024 HP Tuners unlocked ECMs.

How to switch tune slots using the cruise control buttons (Cancel, Resume, Set), plus FAQs (PDF).

How to use cruise control buttons to shift power levels on the fly on a 2022 RAM Cummins.

Step-by-step install guide for the Strokin Diesel LB7 Duramax Shift On The Fly switch (PDF).

Step-by-step install guide for the Strokin Diesel LLY Duramax Shift On The Fly switch (PDF).

Step-by-step install guide for the Strokin Diesel LBZ / LMM Duramax Shift On The Fly switch (PDF).

Step-by-step install guide for the Strokin Diesel 6.7 Powerstroke Shift On The Fly switch, wired at the charge air cooler sensor (PDF).

Step-by-step install guide for the Strokin Diesel 6.7 Powerstroke Shift On The Fly switch, wired at the fuel temperature sensor (PDF).

Step-by-step install guide for the Strokin Diesel Cummins Shift On The Fly switch, wired at the crankcase pressure sensor (PDF).

Step-by-step install guide for the Strokin Diesel 2011–2016 LML Duramax EZ Lynk Shift On The Fly switch (PDF).

Full step-by-step install guide with photos for the 2017–2019 L5P Duramax 3.5" down pipe and EGR fix kit (PDF).

ECM connector pin locations for wiring the SOTF switch on each Duramax engine (PDF).

Full install guide for the L5P EGR delete kit: A000 (2017–2019) and A045 (2020+), including coolant reroutes and optional downpipe (PDF).

Step-by-step install guide for the 2011–2016 6.6 LML Duramax EGR kit, including up-pipe, blocker plate, and coolant re-route (PDF).

EGR and up-pipe install guide for LLY / LBZ Duramax. High skill, 4–8 hours (PDF).

Block-off plate install for the LWN 2.8L Duramax. Short job (PDF).

Step-by-step install guide for the 2011–2016 Ford 6.7 Powerstroke EGR kit (PDF).

Step-by-step install guide for the 2009–2024 Ram 6.7 Cummins EGR kit (PDF).

EGR kit install guide for the Jeep 3.0 EcoDiesel (PDF).

EGR kit install guide for 2020 and newer Gen3 Jeep EcoDiesel, low and high pressure EGR removal (PDF).

Black Label branded step-by-step unlock and tuning instructions for L5P / L5D Duramax (PDF).

Strokin Diesel step-by-step unlock and tuning instructions for L5P / L5D Duramax (PDF).

Strokin Diesel technical bulletin covering IQA injector calibration and related diagnostics for the 6.7 Powerstroke (PDF).

Quick-reference chart showing which fuses to pull before flashing by year and engine: LB7, LLY, LBZ, LMM, plus fuse location (CAB / HOOD). 2007–2006.5 LBZ/LLY2 INFO and RADIO fuses are called out in red (image).