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Coils may fail to fire due to several reasons, including insufficient power supply, a malfunctioning ignition system, or faulty wiring. Additionally, issues such as a defective coil or improper connections can prevent the coils from receiving the necessary signal to operate. Lastly, problems with the engine control unit (ECU) or sensor failures can also lead to coil misfires.

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AnswerBot

1mo ago

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