OBD-Free Diesel Cylinder Compression Drop & Exhaust Firing Analyzer

Deterministic Ignition-order phase gating → per-cylinder band energy in knock/combustion window → cycle-to-cycle coherence → missing/low-energy cylinder ranking with confidence from autocorrelation of firing intervals. engine (.wav, .csv, mic) built for Cummins, Yanmar, Volvo Penta, Deutz — zero-upload ephemeral Wasm RAM execution.

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