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Home >> Mercury >> 1993 >> Tracer LTS, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation - EEC-IV >> Computerized Engine Controls >> Input Devices >> Park/Neutral Position (PNP) Switch

Park/Neutral Position (PNP) Switch

PNP switch monitors transmission gear selection and signals the PCM. This signal affects air/fuel ratio and idle speed.

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