What is an ECM?

The ECM (Electronic/Engine Control Module) is the computer that controls your diesel engine.

What is ECM tuning?

ECM tuning optimizes fuel management and gives you a cleaner burning, more powerful engine.

Why should I get an ECM tune?

The main benefits of an ECM tune are increased HP, better response time, improved engine health, and lower overall fuel consumption.


If you’re thinking about getting an ECM tune on your vehicle, our #1 piece of advice is this: do your research. There are a million home tuners out there that will throw any old tune into your vehicle without checking engine modifications or specifications and output an injector flow rate or incorrect timing code that ruins your fuel economy or wrecks your rig entirely.

Why trust JD Diagnostics & Diesel Repair?

We are a small team of professionals (and diesel drivers ourselves) who are trained and qualified to ensure that every truck we tune meets the customer’s needs. Do you want better fuel economy? We’ll ensure the flow rate is adjusted to ensure optimal efficiency. Do you want more power? We’ll fine-tune the trim codes and kick up the HP. The bottom line is, we talk to our customers to find what they’re looking for and then base our work off of that.

We specialize in repair and maintenance for diesel trucks as well. So if we notice anything that needs to be fixed before the tune, we’ll let you know.

Tuning Available for: Duramax, Power Stroke, EcoDiesel, Cummins, Detroit Diesel, Caterpillar, International, 6.7L, 5L, 7.3L, and many more.


Where can I get my big rig tuned?

Our partner company, 3K Calibrations, specializes in ECM tuning for semis, tractors, motorhomes, and other large diesel engine vehicles. Additionally, if you find yourself with EGR/DPF/UREA problems they provide services to troubleshoot these issues.

Tunes Available for the Following Brands: Caterpillar, Cummins, Detroit Diesel, Hino, International, Isuzu, Mercedes-Benz, Paccar & More

Want to find out more about available ECM tunes?

Give us a call.

Send us an email.