Question
What causes ECU adaptive learning to "freeze", and how to restore it?
Answer
Freezing stems from persistent sensor errors or firmware glitches; restoration requires error clearing + adaptive reset.
Explain
When an ECU receives inconsistent sensor data (e.g., faulty MAF sensor), it may freeze adaptive learning to prevent damage. CHEPQ tools first clear related DTCs (e.g., P0101 for MAF faults), then guide an adaptive reset—allowing the ECU to relearn fuel trims and idle control parameters from scratch.
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