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P2196 Diagnostic Trouble Code Discussion for September 2009

Heated Oxygen Sensor (Bank 1 Sensor 1) Stuck Rich

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Trouble Ticket Help Requests for DTC P2196
Help Request Posted
2004 Ford Taurus SES 3.0L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1FAHP55S64
P2196: bank 1 no switch. Need HELP!!!I have a 2004 Taurus running very rich. Fuel trim on both banks max out, o2 sensors go up to 990mv fuel pressure is within spec. Engine idles smooth to be running so rich.I do not have a gas anylizer to check tail pipe emissions.This is a Calf. emi...
September 02, 2009
2003 Ford Expedition XLT 5.4L MIL Lamp on VIN: 1FMFU1623L
P2196: lack of switching sen 1-1. need help. truck came in with p2198-p2196 and p0174 a few weeks ago. checked fuel pressure 53psi but drops instantly when you shut the truck off. pulled fpr vac. line pressure does not increase, needle on pressure gauge bouncing like a bad a/c compressor. cann...
September 29, 2009