Frequently Asked Questions
How It Works
Step-by-Step Setup
1. Plug the adapter into the included laptop.
2. Connect it to your truck’s diagnostic port.
3. Turn the key to ON (dash lights on).
4. Launch the pre-installed diagnostic program.
5. Start scanning, resetting, and customizing.
No hidden fees. No subscriptions. Just plug and go.
Why Choose DIYDieselTech?
What makes your kits better?
Other companies charge $10,000+ and lock you into $2,500/year contracts. We don’t.
✅ No subscription fees
✅ No license renewals
✅ You own it outright
✅ Dealer-level software included
✅ Full hardware kit + support
Frequently Asked Questions
What can this kit actually do?
• Perform dealer-level diagnostics
• Run system tests, live data, injector balance
• Clear DPFs, regen, reset check engine lights
• Adjust parameters: tire size, idle speed, and more
• View fault history and print reports
Will this work on my truck?
Yes — our kits support all major makes. Choose based on your vehicle year.
The 2026 Universal Kit offers the broadest compatibility.
Do I need internet to use this?
No. The software is pre-installed and runs 100% offline.
What’s included in the kit?
• Fully loaded diagnostic laptop
• USB-Link adapter
• Complete plug set
• Setup manual
• Lifetime tech support
What if I’m not happy with it?
We offer a 30-day risk-free return policy with prepaid return shipping.
How fast do you ship?
• Free shipping: 3 business days (w/ tracking)
• Express: 1 business day, often same-day