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Question

The following statements are all correct EXCEPT ________.
A) When the PCM detects detonation using the knock sensor, it will retard ignition timing.
B) Knock sensors require voltage input from the PCM to function properly.
C) The knock sensor may be ignored by the PCM at idle.
D) Ignition timing may be either ATDC, at TDC, or BTDC.

Answer

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