inspect-misfire

Specialized misfire investigation for combustion engines (P0300-P0308) correlating Mode 06, RPM variance, and fuel trims.

Opciones de instalación

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npx skills add https://github.com/jordelmir/MEET-Mecanicos-Especialistas-En-Todo --skill inspect-misfire

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SKILL.md

Instrucciones de origen · Vista previa de solo lectura

Extracts and correlates statistical signal features (mean, stdDev, slope, p05, p95) across multi-sensor streams.

Diagnostic skill for battery condition, alternator output, and electrical voltage regulation.

Holistic vehicle health evaluation correlating engine, fuel, cooling, electrical, and emissions subsystems.

name	inspect-misfire
description	Specialized misfire investigation for combustion engines (P0300-P0308) correlating Mode 06, RPM variance, and fuel trims.

When analyzing engine misfires:

Retrieve Mode 06 misfire counts per cylinder via obd_read_mode06().
Inspect RPM stability and variance in idle via telemetry_get_features(pid="010C", seconds=15).
Check Short Term and Long Term Fuel Trim via telemetry_get_features(pid="0106") and telemetry_get_features(pid="0107").
Differentiate ignition vs fuel vs mechanical causes:
- Positive high STFT (> +15%) at idle that normalizes at 2500 RPM suggests intake vacuum leak.
- Positive high STFT that worsens under load suggests fuel delivery (filter, pump, injector).
- Random erratic misfire across all cylinders (P0300) suggests fuel pressure, MAF, or timing.
- Single cylinder isolated misfire (e.g. P0301) suggests plug, wire, coil, injector, or compression on that specific cylinder.
Recommend discriminatory tests (e.g. swapping coil #1 to cylinder #2).