All codes/P246A

P246A

Exhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 2 Sensor 3

Moderate severity

This code indicates exhaust gas temperature sensor circuit intermittent or erratic bank 2 sensor 3. It relates to the evaporative / emission control system and may affect performance, emissions, or drivability depending on the exact failure.

Exhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 2 Sensor 3

Common causes

  • Sensor failure

    O2, NOx, pressure, or temperature sensors can drift or fail.

    medium

    Typical part cost: $100-400

  • Exhaust leak or restriction

    Leaks before sensors or a restricted exhaust can set emissions codes.

    medium

    Typical part cost: $100-400

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First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P246A mean?

P246A means "Exhaust Gas Temperature Sensor Circuit Intermittent or Erratic Bank 2 Sensor 3". It is a generic OBD-II code that points to a fault in the evaporative / emission control system.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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