Research Article
Simultaneous-Fault Diagnosis of Automotive Engine Ignition Systems Using Prior Domain Knowledge and Relevance Vector Machine
Table 2
Sample possible simultaneous faults of engine trouble reflected by ignition patterns.
| Case number | Symptom or possible cause |
| 1 | High resistance in secondary circuit and misfire due to extremely lean mixture | 2 | Narrow spark-plug gap and carbon fouled in spark plug | 3 | Partially broken spark-plug cable and wide spark-plug gap | 4 | High resistance in secondary circuit cable and narrow spark-plug gap and rich mixture | 5 | Partially broken spark-plug cable and engine knock and wide spark-plug gap |
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