Ford P0167 O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 3

Description

OBD-II Trouble Code Description for P0167 Ford

O2 Sensor Heater Circuit

What does this mean?

OBD2 Code P0167 Ford definition:
The rear heated oxygen sensor (or sensor 3 for some vehicles), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Even if switching characteristics of the heated oxygen sensor 1 are shifted, the air-fuel ratio is controlled to stoichiometric, by the signal from the heated oxygen sensor 3. This sensor is made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. Under normal conditions the heated oxygen sensor 3 is not used for engine control operation..

Symptoms

Possible sumptoms of OBD code P0167 Ford
– Engine Light ON (or Service Engine Soon Warning Light) – High Fuel Consumption – Excessive Smoke from Exhaust

Causes

Possible causes of OBD code P0167 Ford
– Harness or connectors (The sensor circuit is open or shorted) – Rear heated oxygen sensor (Bank 2) may be faulty The Error code is generally activated on detection of the following conditions: Current amperage in the rear heated oxygen sensor heater circuit is out of the normal range. (An improper voltage drop signal is sent to ECM through the rear heated oxygen sensor heater


The OBD2 Code Information Be Applicable For Ford:

2013 Ford Taurus,2013 Ford Mustang,2013 Ford Kuga,2013 Ford Fusion,2012 Ford Focus,2011 Ford Mondeo,2011 Ford Focus,2011 Ford Edge,2010 Ford Mustang,2009 Ford Focus,2008 Ford Fiesta,2008 Ford Escape,2007 Ford Mondeo,2006 Ford Focus,2005 Ford Mustang,2005 Ford Escape,2003 Ford Mustang,2003 Ford Focus,2000 Ford Mustang

 

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