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P1278 Diagnostic Trouble Code Discussion for September 2008

Air Fuel Sensor (Bank 1 Sensor 1) Circuit Response Time

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Trouble Ticket Help Requests for DTC P1278
Help Request Posted
2003 Ford E-350 7.3L No Start VIN: 1FTSS34F83
P1278: Cylinder 8 - High To Low Side Open Detected. customer complained loss of power then started running rough and stalled, now will not start.performed injector buzz test #8 is very faint compared to the others.checked for shorts and opens from idm to injectors ,everything is good.oil level and pressures are...
September 16, 2008