The Dodge GPEC4 PCM Upgrade Service is a one-time, send-in service required to enable supported tuning and diagnostic workflows on select Dodge, Jeep, and RAM vehicles equipped with the GPEC4 powertrain control module (PCM).

Once upgraded, your PCM can be accessed using HP Tuners software for diagnostics, data logging, and supported calibration changes when paired with the appropriate interface and required accessories.

This service applies to vehicles equipped with the 2.0L GME Hurricane I4 Turbo engine, including:

• 2022–2023 RAM Rampage – 2.0L
• 2023–2024 Dodge Hornet – 2.0L
• 2018–2021 Jeep Wrangler – 2.0L

Vehicle compatibility should always be confirmed prior to purchase.

This is a send-in PCM upgrade service.

• Your original or spare PCM must be shipped to HP Tuners for processing.
• Once received, HP Tuners will upgrade the PCM and return it ready for use with the latest version of VCM Suite.
• Typical service time is up to 7 business days, not including shipping time.
• This is an upgrade-only service. No programming changes are performed. The calibration present on the controller when it arrives will remain unchanged when it is returned.

Once your PCM is upgraded, the following items are required to proceed:

• HP Tuners 2018+ Dodge Smart Access Cable
• Compatible HP Tuners interface:
  • MPVI3 or MPVI4 (required for RAM Rampage and Dodge Hornet)
  • MPVI2 or newer (Jeep Wrangler 2.0L only)
• Latest version of VCM Suite (BETA)
• Universal Credits to license the upgraded PCM (not included with service, check Vehicle Compatibility to confirm how many credits you need for your model)

• Spare ECMs will NOT BE ACCEPTED, no exceptions. Only the original ECM from your vehicle is acceptable for this service.
• ECMs with broken tabs will NOT be accepted for Upgrades.
• Universal credits to license your ECM once upgraded is NOT included in this service. You must purchase credits separately.
• Your upgraded E42 ECM can only be tuned via the OBDII port with an MPVI3 or MPVI4 device, the latest version of VCM Suite BETA, and an internet connection.
• The latest version of VCM Suite can be used to return to stock calibration and/or update to the latest stock calibration (you must have the stock file).
• VCM Scanner, Dealer Diagnostic, and other diagnostic tools will continue to function normally.

Ship your controller to this address:

HP Tuners, LLC.

ATT: RAM GPEC4 PCM Service

[Insert Your Order Number Here]

700 Eastwood Ln

Buffalo Grove, IL 60089

• After purchasing this service, please fill out the shipping form below and place it inside your shipping box.
• Please allow up to 7 business days (not including shipping times) per PCM that you send in for the upgrade process to be completed.
• Any additional hardware ordered with this product will be shipped along with your controller. To avoid any delays on other products, please create a separate order for those items.
• Customers are responsible for shipping costs when sending HP Tuners your ECM/PCM/TCM. The shipping charge at checkout only covers returning your control module after modification.

This applies to international shipments only!

To avoid unnecessary tariff charges on shipping your controller to HP Tuners for servicing, please see the PDF linked below with instructions for the most popular carriers, UPS, DHL, and FedEx. Note: If you are within the US, your shipment will not be impacted by tariffs.

• These ECM/PCM/TCM services are completed at the owner’s risk. HP Tuners will not be responsible for the vehicle, its powertrain, or electronics, nor how the control module is used, calibrated, and its functionality.
• Due to the factory location of the controller in the vehicle, all ECM/PCM/TCMs will exhibit signs of weathering and wear, which is completely normal.
• When utilizing this service there is a possibility that the vehicle will need to be sent to the dealers to be re synced. Purchaser accepts all liability for this activity.

Should you experience any issues with your controller, please submit a ticket to our support team for assistance on how to proceed.

HP Tuners designs and manufactures software and hardware tools for vehicle diagnostics, scanning, logging, calibration, and data acquisition purposes. The authorized use of such tools is to bring a motor vehicle into emissions compliance and/or to maintain emissions compliance, as well as for use on competition/racing and other exempted vehicles. HP Tuners does not create or provide tunes or pre-made calibrations.

HP Tuners’ Terms of Use, policies, and agreements mandate that users shall comply with all local, state, and federal laws. In using HP Tuners software and hardware tools, you are representing, warranting, and agreeing not to use, employ or allow any HP Tuners tools to operate as a defeat device or to violate emissions compliance in any manner whatsoever. You further represent warrant and agree that the HP Tuners tools shall only be used by manufacturers, calibration businesses, and professionals to develop emissions-compliant and/or exempted calibrations.