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Home >> Pontiac >> 1988 >> Lemans FWD L4-98 1.6L >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Ignition System >> Ignition Control Module >> Description and Operation >> Ignition Module
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Ignition Module


The ignition module receives a signal from the pickup coil which is sent to the ECM as a reference signal. The ECM uses this reference signal for RPM and spark calculation.



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