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Even with a proper flex fuel setup, issues can arise from ethanol sensor failures or incorrect CAN communication.
Common Symptoms of ECA Issues
Issue | Possible Cause | Solution |
|---|---|---|
Ethanol content stuck at 0% | No CAN signal from ECA | Verify wiring & check CAN bus ID |
Ethanol fluctuates randomly | Sensor malfunction or poor grounding | Check sensor voltage stability or replace ECA |
Ethanol jumps between values | CAN ID conflict with another module | Ensure correct CAN ID settings in MG Flasher |
Workarounds if the Sensor Fails
Enable Static Mode to set a fixed ethanol value, this can be done On-The-Fly with Cruise Controls or in-app: Ethanol Content Override
Use fuel trims and knock sensor feedback to fine-tune timing if ethanol content is unknown.