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.

Enter the vehicle’s 17-character VIN in the field above before adding this service to your cart. Verify it against the vehicle before ordering.