Unlocking the full potential of your late-model Chevrolet Silverado or GMC Sierra often involves accessing and modifying the Engine Control Module (ECM), commonly referred to as an E90 Unlock. This process allows for custom tuning and performance enhancements tailored to your specific needs. This guide outlines the steps involved in unlocking your E90/E93 ECM, whether you’re purchasing a new ECM or upgrading an existing one.
Understanding the E90/E93 ECM Upgrade Process
The process typically involves removing the ECM, sending it to a tuning specialist like HP Tuners, and then reinstalling the upgraded unit.
Steps for Upgrading Your Existing ECM (E90 Unlock Service)
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Vehicle Compatibility: Confirm that your vehicle is compatible with the E90/E93 unlock service. This generally includes 2019-2023 Chevrolet Silverado and GMC Sierra models with specific engine configurations (5.3L, 6.2L, and 6.6L V8 engines).
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Select Service and Order: Choose the appropriate service for your needs and place your order, providing all necessary vehicle information.
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Shipping Preparation: Upon order completion, you’ll receive a shipping form and address via email and in your order confirmation. Complete this form and include it with your packaged ECM.
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ECM Removal and Packaging: Carefully remove the ECM from your vehicle and package it securely for shipping. Clearly label the outside of the box with your order number.
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Shipping to HP Tuners: Ship your ECM to HP Tuners using your preferred carrier. Remember that shipping costs are the responsibility of the customer. You can find the shipping address on the HP Tuners website.
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ECM Upgrade and Return Shipping: HP Tuners will upgrade your ECM and ship it back to you. Since your original ECM is being returned, no further installation steps are required beyond reinstallation in your vehicle.
Steps for Purchasing a New Upgraded ECM (E90 Unlock Purchase)
If purchasing a new, pre-unlocked ECM, you’ll bypass the initial shipping steps.
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ECM Installation: Upon receiving your upgraded ECM, install it in your vehicle following the detailed installation instructions provided by HP Tuners.
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Licensing and Tuning: License the E90/E93 ECM with 6 Universal Credits (sold separately) through HP Tuners. Connect your MPVI2 (or newer) device and utilize the latest VCM Suite BETA software to begin custom tuning your vehicle.
Conclusion
The E90 unlock process, whether through upgrading an existing ECM or purchasing a new one, provides access to significant performance tuning capabilities for your Chevrolet Silverado or GMC Sierra. Ensure you follow the correct procedures and consult with HP Tuners for any specific questions or concerns. This modification can unlock significant horsepower and torque gains, improve fuel economy, and tailor your truck’s performance characteristics to your driving style. Remember to always use reputable tuning solutions and professionals for the best results.
