Mini Maxx Tuner V2: DPF / DEF / EGR Delete Tuner for 2008-2019 Powerstroke / 2007.5-2016 6.6L Duramax / 2007.5-2021 6.7L Cummins

Mini Maxx V2 Technical Troubleshooting & Fitment Guide

If you encounter errors or performance issues with your Mini Maxx V2, locate your truck’s year and model below for the official solution.

⚠️ Universal Requirement (All Vehicles)

• Factory Pyrometer/EGT Probes: The Mini Maxx V2 does not support factory EGT sensors. You must unplug all factory probes during installation.
• Monitoring Tip: If you require real-time EGT monitoring, you must add an external docking station to your Mini Maxx unit.

RAM / Cummins Solutions

2013–2021 RAM 6.7L

• Issue: Boost pressure dropping off and capping at 20 PSI.
• Solution (2013–2018): A BETA fix is included in the latest update. This provides a temporary solution (valid for 300–500 miles).
• Solution (2019–2021): We are currently developing a permanent fix for these model years. If you experience this, ensure you are running the most recent firmware available.

2014–2015 RAM 6.7L

• Issue: Reports of engine "loping" or "surging" at idle or low speeds.
• Solution: Update your device to Firmware Version 2.0.0.4 or higher to resolve these calibration conflicts.

2018+ RAM 6.7L

• Error: "Part number not currently supported."
• The Cause: This tuner supports PCMs with part numbers starting with a Number. If your PCM part number starts with a Letter, the tuner may be incompatible.
• Action: Run the latest update first. If the error persists, contact technical support or your authorized retailer for a return/exchange.

Ford Powerstroke Solutions

2011–2019 Powerstroke (General)

• Codes P24C6 or P24DA: These are PMS codes caused by older software versions. Fixed as of October 2023. If these codes appear, simply update your device.
• SOTF (Shift-on-the-Fly): Approximately 7% of 2011–2019 Fords have PCM software that is incompatible with our SOTF strategy. In these rare cases, power modes will not change on the fly.

2016 Powerstroke

• Code P04E3: Caused by a missing PCV sensor that the MMV2 looks for by default.
• The Fix: Download the specific fix file, extract it, and copy the MGGDT.IT1 file into the "FORD" folder on your SD card. Update the firmware and reinstall the tune. (Only perform this if your truck displays this specific code).

2017–2019 Powerstroke

• Issue: Boost drop-off and significant loss of power.
• The Fix: This is caused by interference from the factory EGT sensor. Unplug the EGT sensor and clear the codes. The truck will return to full power (EGT readout will be disabled).
• ⚠️ WARNING: The Throttle Position Gauge is non-functional on these years. Do not use this gauge for monitoring.

GM Duramax LML Solutions

2011+ Duramax LML

• Cab & Chassis Warning: This tuner does not support dual fuel tanks. Installing this on a Cab & Chassis truck will disable the rear tank. Installation is not advised for dual-tank configurations.
• Gauge Limitations: The Boost Gauge will not function on this platform.
• Feature Restrictions: You cannot adjust Tire Size or modify the Speed Limiter on the LML platform with this unit.

Boost Your Rig: Mini Maxx V2 Performance & Fuel Economy

The Mini Maxx V2 is the premier choice for drivers looking to slash fuel costs and unlock hidden power. By pairing this tuner with a high-quality DPF delete pipe and EGR block-off kit, most owners report a massive jump in fuel economy—gaining up to 5 MPG in some configurations.

When it’s time to shed restrictive emissions hardware, the Mini Maxx V2 is the fastest, most reliable path to a cleaner-running, more powerful engine. Once you feel the difference in throttle response, you’ll never go back to stock.

Featured Performance & Tuning Benefits

If you want clean, smoke-free power without the headache of constant "Regen" cycles, the Mini Maxx V2 delivers. This is a true professional-grade delete tuner that provides:

• Total Emissions Removal: Seamlessly uninstall DPF, EGR, and DEF components.
• Stable Delete Tunes: Proven, high-performance software that eliminates "Check Engine" lights and limp mode.
• Texas-Proven Performance: Rigorously tested for off-road and competition builds common in the Southwest.

The All-In-One Delete Solution

The Mini Maxx V2 Delete Kit is your comprehensive answer to EGR, DPF, and DEF deletes. Designed to work across Ford, Dodge/RAM, and GM platforms, this system includes everything needed for a successful flash—no additional expensive programming or "unlocking" required. Keep your dash clear of DTCs and your engine running at peak efficiency.

Platform-Specific Reminders

Dodge RAM 6.7L Cummins (2007.5–2021)

The Mini Maxx V2 offers industry-leading support for the 6.7L Cummins.

• Compatibility Check: Ensure your PCM part number begins with a number (not a letter) for a seamless interface.
• Results: Expect optimized torque curves and significantly lower EGTs.

Updates & File Access

The Mini Maxx V2 features easy, SD card-based updates. Whether you are running a Powerstroke or a Cummins, our update center provides the latest delete tunes.

• Pro Tip: Use a FAT32-formatted SD card for all firmware and tune refreshes to ensure maximum stability.

Mini Maxx V2: Frequently Asked Questions

Q1: What does the Mini Maxx V2 actually do?
The Mini Maxx V2 is a high-performance calibration tool that increases horsepower and torque while optimizing fuel maps. It allows you to digitally "delete" the following systems:

• DPF (Diesel Particulate Filter): Removes the filter and disables all related exhaust sensors.
• EGR (Exhaust Gas Recirculation): Disables the EGR function. You can run with the system installed or with a full block-off kit to eliminate coolant leaks permanently.
• DEF (Diesel Exhaust Fluid): Completely shuts off the urea injection system, allowing you to remove the DEF tank and sensors to shed weight and avoid sensor failures.

Q2: Is it legal to run a Mini Maxx Tuner?
In the United States, these race tunes are designed for OFF-ROAD / COMPETITION USE ONLY. They are not intended for vehicles operated on public highways. Always verify your local state and federal emissions regulations before installation.

Q3: Can I run High-Sulfur Diesel?
Yes. Once the Mini Maxx V2 is installed and emissions systems are removed, ULSD (Ultra-Low Sulfur Diesel) is no longer a requirement. This is a major benefit for drivers in regions where ULSD is difficult to source.

Q4: How does it help with reliability?
By eliminating the EGR, you stop hot soot from entering your intake. By deleting the DPF, you stop the backpressure that kills turbos. The result is a more capable, economical, and longer-lasting vehicle.

Access the Mini Maxx Master Guide

Mini Maxx Tuner Error Codes & Fixes

Facing a "Missing SD Card" or "Error 399"? Most issues are solved by following our strict formatting and installation protocols. Check this guide for instant solutions to Ford, RAM, and Duramax-specific error codes.

Shipping & Delivery Policy

At DieselPerf, we specialize in high-performance diesel emission system accessories. Our mission is simple: to deliver the parts you need with maximum efficiency, security, and transparency. Below are the guidelines we follow to ensure your order reaches you safely.

1. Perfecting Your Delivery

To ensure a seamless experience and avoid unnecessary surcharges, please keep the following in mind:

• Precision Matters: Always verify your shipping address at checkout. Accurate data prevents costly rerouting fees.
• Address Classification: Carriers determine rates based on zoning. If your business is located in a residential area, it will be classified and billed at the Residential Delivery rate.
• Stay Reachable: Please provide a valid phone number. Carriers often need to coordinate delivery windows; missed connections can lead to significant delays.

2. Order Consolidation

To get your parts to you as fast as possible, we ship items as they become available. This means your order may arrive in multiple packages. Rest assured, you will never be charged extra for these split shipments.

3. Our Logistics Network

We partner with world-class carriers, including UPS, FedEx, DHL, USPS, and Amazon Logistics.

• Global Fulfillment: We fulfill orders from our strategic hubs in the U.S. and Hong Kong, prioritizing the location closest to you.
• Lead Times: While most orders arrive within 5–15 business days, specialty items or factory-direct shipments may require additional transit time.

4. Damaged or Missing Shipments

Your satisfaction is our priority. If your order arrives compromised, please follow this protocol:

For Damaged/Incomplete Deliveries:

1. Document Immediately: Note any visible damage or missing pieces on the delivery receipt before signing.
2. Contact Us: Reach out within 2 business days at service@DieselPerf.com or via phone at +1 325-013-1608 / +852 5381 0098.
3. Preserve Evidence: Keep all original packaging and take clear photos of the damage to expedite your claim.

For Lost Shipments:
If a package goes missing, we will initiate a dock check with the carrier (typically taking 2–7 business days). If the items cannot be located, we will work with you to provide a full replacement or a refund.

5. Estimated Timeframes

• Processing: Orders are generally dispatched from our warehouse within 1–2 business days.
• Transit: Standard U.S. ground shipping typically takes 7–10 business days, though many items arrive sooner.
• Holiday & External Factors: Please account for seasonal peaks (Christmas, Thanksgiving, etc.) and unforeseen "Force Majeure" events like extreme weather, which may naturally extend delivery windows.

Customer Support

Our team is here to help you get back on the road.

• Hours: Monday – Friday | 9:00 AM – 6:00 PM
• Email: service@DieselPerf.com