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Will a P0191 DTC on a 2003 Ford Taurus SES affect the transmission shifting? Lost the ability to shift auto transmission and received this code when I ran a scan. No problems with trans up to this time.

Vehicle: 2003 Ford Taurus 3.0

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P0191 is related to the engine could be caused by an intake leak or fuel pressure related.

if the engine is in fail safe mode, it can affect shifting on the transmission

check for intake leaks and fuel pressure first 

see specs below 

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