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Technical resources for PCM, ECU, immobilizer, calibration, and mail-in service decisions. Use these guides to understand the service path, then verify exact compatibility before ordering.

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Programming, compatibility and ownership
Donor engine PCM and original chassis PCM compared for an engine swap

PCM / ECU Programming / October 12, 2026

Donor PCM vs Original PCM for an Engine Swap

An engine swap may work best with the donor PCM, the chassis PCM, or a different compatible controller. Learn how engine, transmission, network, security, and tuning needs shape the choice.

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