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Park/Neutral Position (PNP) Switch

WARNING: This page is about a different car, the 1994 Mercury Sable, 1994 Mercury Cougar, 1994 Lincoln Continental, 1994 Ford Thunderbird, and 1994 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

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