P2087 Fault Code

Exhaust Gas Temperature Sensor Circuit Intermittent Bank 2 Sensor 2

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2087 fault code indicates an issue with the exhaust gas temperature sensor circuit, specifically for Bank 2 Sensor 2. This sensor plays a crucial role in monitoring the temperature of the exhaust gases coming from the engine. If the sensor is malfunctioning or the circuit is experiencing issues, it can lead to incorrect readings and affect vehicle performance.

• Bank 2 refers to the side of the engine opposite to Bank 1, typically where the cylinders are located.
• Sensor 2 is usually located downstream of the catalytic converter, responsible for measuring the temperature of exhaust gases after they have passed through the converter.

What are the symptoms of the P2087 code?

Vehicles experiencing a P2087 code may display various symptoms:

• Check Engine Light (CEL) illumination on the dashboard.
• Reduced engine performance or power, especially under heavy load.
• Possible increase in emissions due to incorrect sensor readings.
• Engine overheating if the sensor issues affect temperature management.

What causes the P2087 code?

Several factors can lead to the P2087 code:

• A failed or faulty exhaust gas temperature sensor.
• Wiring issues such as frayed wires or loose connections in the sensor circuit.
• Corrosion or damage to the connectors of the sensor.
• Malfunctioning engine components affecting exhaust flow or temperature.
• Issues in the Engine Control Unit (ECU) affecting sensor readings.

How to fix P2087?

To resolve the P2087 fault code, follow these steps:

• Inspect the exhaust gas temperature sensor for damage or wear. Replace if necessary.
• Check the wiring and connectors for any signs of corrosion, fraying, or loose connections. Repair or replace as needed.
• Use a scan tool to verify the operation of the sensor and its readings compared to other temperature readings in the vehicle.
• Ensure the engine is functioning properly; if other issues are present, resolve those to avoid recurrence of the fault code.