Confused by emissions systems on your modern diesel truck? You’re not alone. At Mario High Performance Diesel (MHPD), we know deleting them is not the answer. We’re here to show you the smarter solution.
At MHPD, we specialize in emissions compliance tuning, providing a clean, safe, and legal way to keep your truck reliable without risking engine damage or violating regulations. MHPD is proud to deliver true emissions-compliant solutions that restore performance while protecting the systems your truck needs.
We don’t take shortcuts, just smart and professional tuning that improves power, reduces shutdowns, and keeps your truck fully compliant for the long haul.
Why Trucks Repeatedly Derate Or Shutdown
Many emissions-related derates stem from electrical faults rather than true mechanical problems. Every truck driver with a 2010 or newer truck knows the pain of a minor emissions code: within minutes, a sensor issue, whether from dirt, misreading, or incorrect wiring, can trigger derates or shutdowns. It’s rarely an actual engine failure.
Modern aftertreatment systems rely on dozens of inputs working together, and when one doesn’t align, the ECM will respond by protecting the emissions system. Without proper diagnostics, shops often end up switching parts blindly, wasting your time and money, while the real issues, such as a faulty sensor, remain unresolved.
With proper testing and data-based tuning, these issues can be identified quickly and prevent you from unnecessary downtime or repeated derates.
What Is Emissions Compliance?
Emissions-compliance tuning optimizes how your truck’s ECM responds to minor faults so it doesn’t derate over harmless issues. MHPD custom tuning keeps the engine running clean and efficient while preserving critical components.
Our tunings preserve the important warnings, including oil pressure, coolant temperature, fuel pressure, and overheating conditions. When your warning lights appear after an MHPD tune, you can trust that it’s accurate.
We will never gamble with your engine’s future. We guarantee that our tunings keep your engines safe.
The Problem With Misdiagnosed Emissions Codes
Dealerships and independent shops often recommend new parts to fix emissions codes. Some even rely on YouTube to identify the correct sensor. Guesswork leads to high costs, long downtimes, and may not resolve the problem.
MHPD uses real-time data and, if necessary, dyno testing to diagnose emission issues. This effective approach prevents unnecessary repairs, saving both time and money.
Why Fleets Nationwide Trust MHPD
Owners and fleets across Canada and the U.S trust MHPD for emissions-compliant tuning that keeps their trucks running, reduces shutdowns, and helps engines last longer, all while meeting compliance.
Don’t let unnecessary shutdowns disrupt your business. Choose MHPD for emissions-compliant tuning you can trust. Contact us now for a quote or to schedule remote service. Experience the difference of proven expertise and put your truck’s performance in expert hands today.