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2015 FORD F-150
3.5L V6 EcoBoost•RWD•AUTOMATIC•gas•turbo
14 active safety recalls on this vehicle — view recalls
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Repairs418Labor995Torque7006Fluid18DTC3796Battery2Maintenance0Recalls14
P0167moderate severityPowertrain

O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)

on 2015 Ford F-150 3.5L V6 EcoBoost · RWD

What this code means

The PCM detects a fault in the heater circuit of bank 2, sensor 3 oxygen sensor. The heater helps the sensor reach operating temperature quickly.

Symptoms

  • Check engine light on
  • Delayed closed-loop operation
  • Poor cold-start fuel economy

Common causes

  • Faulty O2 sensor heater element
  • Blown fuse
  • Wiring or connector fault
  • Faulty PCM

Diagnostic steps

  1. Scan for stored codes and freeze frame
  2. Check heater fuse and power supply
  3. Measure heater element resistance
  4. Replace oxygen sensor if heater is faulty
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