HP Tuners GM E66 ECM Service (Global B)

HP Tuners’ one-time send-in upgrade service for the GM Global B E66 ECM used in supported 3.0L Duramax LM2 and LZ0 applications. The original E66 ECM must be upgraded before custom tuning with VCM Suite BETA.

Supported Applications

• 2022–2022.5 Chevrolet Silverado 1500 3.0L Duramax LM2
• 2022–2022.5 GMC Sierra 1500 3.0L Duramax LM2
• 2021–2023 Chevrolet Suburban 3.0L Duramax LM2
• 2021–2023 Chevrolet Tahoe 3.0L Duramax LM2
• 2021–2023 GMC Yukon 3.0L Duramax LM2
• 2021–2023 Cadillac Escalade 3.0L Duramax LM2
• 2022–2025 Chevrolet Silverado 1500 3.0L Duramax LZ0
• 2022–2025 GMC Sierra 1500 3.0L Duramax LZ0

Requirements

• Your vehicle’s original E66 ECM.
• Latest VCM Suite BETA.
• 6 HP Tuners Universal Credits, sold separately.
• An HP Tuners MPVI3 or HP Tuners MPVI4 interface. MPVI2+ and older devices are not compatible.

Select E66-equipped vehicles with a 10-speed transmission may also use a Global B T93 TCM, which requires its own service and licensing.

Service Notes

• No IMMO relearn, crank relearn, or Replace ECM function is required when the original upgraded ECM returns to the same vehicle.
• Do not temporarily install and relearn a spare ECM while the original is being serviced.
• Dealer diagnostics and VCM Scanner continue to function normally.
• Processing time does not include shipping and varies with HP Tuners’ current controller-service workload.

Shipping

HP Tuners, LLC
ATT: GM E66 ECM Service (Global B)
[YOUR ORDER NUMBER]
711 Dartmouth Lane
Buffalo Grove, IL 60089

Complete the HP Tuners Controller Upgrade Service Shipping Form and include it in the package. Customers are responsible for inbound shipping. The shipping charge associated with this service covers return shipment after modification.