Nissan 240SX OBD1 Codes Code 21

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Pulsar Code 21, Ignition Signal - What Is It?

1921 NISSAN 240SX
I Have A 1988 Pulsar Nx With The 1.6 Engine With 200,000km On It. It Just Started To Run Rough And Stall When Idling. I Checked The Codes...
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Asked by Artwg

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