FormulaFlash Read and Write GM E88 ECM on Bench

By | July 29, 2026

Formulaflash sofwtare v1.1.70 has new support for GM ACDelco E88 / E90 / E93 ECUs. Here iECUTool.eu will show how to read and write GM E88 ECU with FormulaFlash programmer?

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Run Formula Flash software. Choose E88 ECU type and select bench mode.

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Check the connection diagram.

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Connect 6 wires: 3x VCC, CAN-H, CAN-L and GND.

Set up bench connection.

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Hit “Connect” to build a connection between device and ECU.

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The ECU has been decrypted. So we can read ECU.

Read and save ECU data.

Then write ECU.

Formula flash also does checksum correction.

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