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P0321 Code – Ignition Distributor Engine Speed Input Circuit Range Performance

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Code P0321 Possible Causes
Ignition/Distributor engine speed sensor circuit poor electrical connection
Ignition/Distributor engine speed sensor harness is open or shorted
Low battery charge
Faulty Crankshaft Position sensor
Faulty Engine Control Module ECM
Faulty Ignition/Distributor engine speed sensor

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