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HP Tuners GM E46 ECM Upgrade Service

$399.99

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Tune your 2020-2022 3.0L Duramax Truck with HP Tuners

HP Tuners is thrilled to offer exclusive custom tuning and diagnostics capabilities for the GM E46 ECM. This ECM is found in 2020-2022 Chevrolet Silverado 1500/GMC Sierra 1500 3.0L Duramax (LM2) diesel trucks (non-Global B) and requires this service to diagnose/tune the vehicle. This one-time upgrade service upgrades your original E46 ECM. This requires you to remove the original ECM from your truck and send it to our headquarters for servicing. After upgrading, we’ll ship it back to you and you’ll have full access to calibrate, log, and scan via the OBDII port.

No reprogramming or relearns required:
  • No IMMO relearn
  • No crank relearn
  • No "Replace ECM" function (as long as the ECM is installed back into the same vehicle it came from)
E46 ECM Upgrade:
  • ECM Upgrade Service: $399.99
  • ECM (E46) License for tuning: (6) Universal Credits (sold separately)
  • Requires MPVI2, MPVI2+, or MPVI3 interface and the latest version of VCM Suite BETA
HP Tuners also supports the T93 TCM found in 2020+ GM vehicles. If you own a vehicle with the T93 TCM, see our GM T93 TCM Services.

Service Notes
  • HP Tuners supports 2020-2022 Chevrolet Silverado 1500/GMC Sierra 1500 3.0L Duramax (LM2) trucks that are non-Global B. This includes "facelift" trucks as they are Global-B and contain a different controller.
  • ECMs with broken tabs or connectors WILL NOT be accepted for Upgrades.
  • This service only upgrades your original ECM for tuning, it does not reprogram your ECM for a different VIN. If you intend to send HP Tuners a spare E46 ECM, it will be returned to you with the same programming as it was received and may not operate in your GM vehicle without additional programming by a GM dealer.
  • Your E46 ECM core must be fully functional with no physical or internal damage.
  • No other tuning or calibration tools can be used with the E46 ECM (not including dealer reflash tools).
  • VCM Scanner, Dealer Diagnostic, and other diagnostic tools will continue to function normally.
  • The latest version of VCM Suite can be used to return to the stock calibration and/or update to the latest stock calibration.
  • The E46 ECM upgrade service takes about 1 to 2 business days to complete (not including shipping times).
  • HP Tuners' E46 ECM support does not cover the Chevrolet Suburban LM2 at this time.


Add to Cart:

  • Model: ECM-00-E46-U
  • FROM: HP tuners

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we added this on Wednesday 08 March, 2023.

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