P0167 O2 Sensor Heater Circuit Bank 2 Sensor 3

Sensor 3 on bank 2 is a switching oxygen sensor behind a second converter or converter brick. It is rare – documented for Jaguar Land Rover's supercharged V6 and V8 (2013–2016), where it is the 'post-cat' sensor of the second bank, and for Ford systems that monitor part of the converter volume. P0167 concerns its heater. Ford checks the driver voltage continuously and the heater current once per drive cycle when the sensor is estimated above about 120 °C and has heated for 30 s; below 0.22–0.55 A (depending on sensor type) or above 3 A is a fault, and the heater resistance has its own code (P0061). Jaguar Land Rover lists P0167 for its post-cat sensor of the second bank. A cold sensor can lead to P0165/P0166. When it fails, the downstream evaluation of that converter is suspended; there is no limp mode.

Likely causes

Symptoms

• Check engine light on (usually after two drive cycles)
• P0165/P0166 may follow
• Usually no noticeable change in driving

Repair estimate

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

Related codes

References: law.cornell.edu, newtonnet.co.uk, fordservicecontent.com, static.nhtsa.gov.