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What is the ion sensor?

Updated: 10/25/2022
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12y ago

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Ah Ion sensor reads the electrical impedance of the fuel/air mixture in each cylinder and sends that reading to the ECM. When the Ecm receives the signal, it makes a judgement with relation to the duration of the spark. The Ecm will adjust the spark duration for that cylinder in an attempt to make the ion data match an optimum waveform or pattern stored in the memory. Each cylinder has its own signal and therefore each cylinder can be adjusted individually according to the wave form stored.

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Q: What is the ion sensor?
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