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Engine Fault Code P2086

Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 2

Care Engine Code Reader
The Engine Fault Code P2086 refers to an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 2, Sensor 2. This code indicates that the readings from the sensor are outside the expected range or performance levels.

What It Means:
1. Exhaust Gas Temperature Sensor: This sensor measures the temperature of the exhaust gases coming from the engine. It helps the engine control unit (ECU) manage emissions and optimize performance.
2. Bank 2: This refers to the side of the engine that does not contain the number one cylinder. In a V-type engine, it`s important to differentiate between the two banks.
3. Sensor 2: This typically refers to the second sensor located downstream of the catalytic converter. It monitors the temperature after the exhaust gases have passed through the catalytic converter.

Possible Causes:
– Faulty EGT sensor
– Wiring issues, such as shorts or open circuits
– Corroded connectors
– Exhaust leaks
– Problems with the ECU

Manufacturer Variations:
While P2086 is standardized, different manufacturers might have specific interpretations or additional codes. Here are some examples:

Porsche: May have additional codes or variations related to their specific engine management systems.
Mini: Could have unique codes or parameters based on their turbocharged engines.
Mercedes: Might interpret this code with additional context related to their advanced emissions systems.
Audi: Similar to Volkswagen, they may have specific coding that relates to their unique exhaust management.
– Jaguar and Land Rover: These brands may have proprietary systems that could lead to different diagnostic codes or strategies for addressing the issue.

What to Do:
1. Scan the Vehicle: Use an OBD-II scanner to confirm the code and check for any additional codes that may provide more context.
2. Inspect the Sensor: Check the EGT sensor for any visible damage or corrosion.
3. Examine Wiring: Look for damaged wires or loose connections in the circuit.
4. Consult a Professional: If you`re unsure or the problem persists, it might be best to take the vehicle to a certified mechanic for a more thorough diagnosis.

Addressing this issue promptly can help maintain your vehicle`s performance and reduce emissions.
The Engine Fault Code P2086 refers to an issue with the exhaust gas temperature (EGT) sensor circuit, specifically for Bank 2 Sensor 2. This code typically means that the readings from the EGT sensor are outside the expected range or performance level. Here are some common causes for this code, which can vary by manufacturer:

1. Faulty Exhaust Gas Temperature Sensor: The sensor itself may be malfunctioning or damaged, leading to incorrect readings.

2. Wiring Issues: Damaged or corroded wiring or connectors in the EGT sensor circuit can cause poor connections or shorts, affecting the sensor`s performance.

3. Exhaust Leaks: Leaks in the exhaust system can lead to incorrect temperature readings, as the sensor may not be measuring the actual exhaust gases.

4. Faulty Engine Control Unit (ECU): In rare cases, the ECU may have a fault that affects how it interprets the sensor`s data.

5. Excessive Heat: If the engine is running too hot, it could cause the EGT sensor to read outside its normal range.

6. Contamination: Dirt or soot buildup on the sensor can interfere with its ability to accurately measure temperature.

Manufacturer-Specific Considerations:

Porsche: High-performance vehicles may have more sensitive sensors, and any exhaust modifications could lead to this code.

Mini: The EGT sensor might be integrated into the turbocharger system, so issues with the turbo could also trigger this code.

Mercedes: Mercedes vehicles often have multiple sensors; if one fails, it could affect the readings of others, leading to this code.

Audi: Audi`s use of complex engine management systems means that a software update may sometimes resolve sensor issues.

Jaguar: Jaguars may have unique wiring harness layouts that can be prone to wear and tear, leading to this fault.

Land Rover: Given the off-road capabilities, Land Rovers might experience more environmental exposure, increasing the likelihood of wiring issues.

If you encounter this code, it`s a good idea to start by checking the EGT sensor and its wiring. If those look good, then inspect for exhaust leaks and consider scanning for any additional codes that might provide more context.
The P2086 code indicates an issue with the exhaust gas temperature (EGT) sensor on Bank 2, Sensor 2. This sensor monitors the temperature of the exhaust gases, helping to manage emissions and engine performance. Heres how to address this code, along with manufacturer-specific tips:

General Steps to Fix P2086:

1. Scan Tool Check: Use an OBD-II scanner to confirm the P2086 code and check for any other related codes. This will help you understand if there are multiple issues.

2. Visual Inspection:
– Inspect the wiring and connectors for the EGT sensor. Look for frayed wires, corrosion, or loose connections.
– Check the sensor itself for any signs of damage.

3. Test the EGT Sensor:
– Using a multimeter, test the resistance of the sensor. Compare your readings to the specifications in the vehicle`s service manual.
– If the sensor is out of range, it may need replacement.

4. Check for Exhaust Leaks:
– Inspect the exhaust system for leaks. An exhaust leak can cause incorrect readings from the EGT sensor.

5. Clear the Codes:
– After making repairs or replacements, use the scanner to clear the trouble codes and take the vehicle for a test drive to see if the code returns.

Manufacturer-Specific Tips:

#Porsche:
– Ensure that you use genuine parts for replacement. Porsche vehicles often have specific calibration for sensors, and using aftermarket parts can lead to further issues.

#Mini:
– Check for software updates that might affect the EGT sensor readings. Sometimes, a simple software update can resolve sensor performance issues.

#Mercedes:
– Mercedes vehicles may have multiple EGT sensors. Confirm you are working on Bank 2, Sensor 2. Follow the wiring harness carefully, as it can be complex.

#Audi:
– Audi often uses a dual-sensor setup. If one sensor is faulty, it`s wise to check the other sensor as well, as they may influence each other.

#Jaguar:
– Look for any TSBs (Technical Service Bulletins) related to the EGT sensor. Jaguar sometimes has specific fixes or recalls for these issues.

#Land Rover:
– Similar to Jaguar, check for TSBs or known issues with the EGT sensor. Land Rover vehicles can have unique wiring layouts, so be cautious during inspections.


If you follow these steps and manufacturer-specific tips, you should be able to resolve the P2086 code effectively. If the problem persists, it might be best to consult a professional mechanic with experience in European cars.
Driving with a P2086 code, which indicates an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 2 Sensor 2, is generally not recommended. This code means that the sensor is either not working properly or the readings are out of range. Heres a breakdown of what it could mean for different manufacturers:

1. Porsche: In Porsche vehicles, a faulty EGT sensor can affect engine performance and fuel efficiency. It might also lead to more serious issues if left unchecked. It`s best to get it diagnosed and repaired soon.

2. Mini: For Mini models, the EGT sensor plays a crucial role in monitoring emissions and engine performance. Driving with this code can lead to poor fuel economy and increased emissions. Repairing it promptly is wise.

3. Mercedes: In Mercedes vehicles, a malfunctioning EGT sensor can trigger the check engine light and may cause the engine to run inefficiently. It could also impact turbocharger performance in some models, so addressing it quickly is important.

4. Audi: Audi uses EGT sensors to optimize fuel injection and emissions control. If the sensor is faulty, it could lead to reduced performance and increased emissions. Its advisable to have it checked out.

5. Jaguar: In Jaguar cars, the EGT sensor is vital for the engine management system. A malfunction can lead to poor performance and potential damage to the turbo or catalytic converter. Its best to fix it as soon as possible.

6. Land Rover: For Land Rover vehicles, the EGT sensor helps in managing the exhaust system and engine performance. A fault could lead to inefficient operation and possible damage over time, so getting it repaired is recommended.

Our take, while you might be able to drive short distances with a P2086 code, its not safe or advisable. Its best to have the issue diagnosed and repaired to ensure your vehicle runs smoothly and efficiently.

OBD Codes Explained

Engine Codes

P is for PowerTrain - Engine and Transmission.

P0 Indicates Generic Powertrain Codes

P0 Codes indicate problems with the powertrain and are common for all vehicles using the OBD-II Standard.

P1 Enhanced Manufacturer Specific Codes

P1 Codes are specific to manufacturers.

Sub-System

The 3rd Digit indicates the Sub-System

1 – Emission Management

2 – Injector Circuit

3 – Ignition

4 – Emission Control

5 – Vehicle Speed and Idle

6 – Computer and Output

7 – Transmission

8 – Transmission

9 – Reserved

0 – Reserved

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