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P0156 Diagnostic Trouble Code Discussion for February 2007

Heated Oxygen Sensor (Bank 2 Sensor 2) Closed Loop Fuel Control

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Trouble Ticket Help Requests for DTC P0156
Help Request Posted
1998 Ford Windstar 3.0L MIL Lamp on VIN: 2FMZA51U8B
P0156: O2S21 CKT fault. ... code P0156 O2S21 CKT fault.I change B2 sensor1 check all wiring OK still same problem.
February 05, 2007