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Home >> Oldsmobile >> 1995 >> Ninety-Eight 3.8 1 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> ECM/Pcm Code Charts >> Code P1200, Injector Circuit Fault >> Intermittent Test
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Intermittent Test

Disconnect PCM Blue connector and install a DVOM to monitor voltage between PCM harness boost control driver circuit terminal and ground. With ignition on, observe voltage while moving related connectors and wiring harness. If failure is induced, voltage reading will change.

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