My Ford How to Understand, Service and Modify Ford Fuel Injection & Electronic Engine Control 1988-1993 Manuel says that 67 trouble code in a Key on Engine Off(KOEO) it is the Neutral Pressure Switch (NPS) circuit open(3.0L MAP, 3.0L MAF-SFI,3.8L SFI).
In a continuous memory Clutch Switch Circuit Failure
In a key on engine off (koeo) & Running (ER)Neutral Drive Switch (NDS),circuit open: A/C input high
In a key on engine off and Continuous Memory it is a Manual Lever Position (MLP) sensor out of range; A/C input high(4.9L MAP, 5.8L Map)
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