P2086 - OBD Trouble Code

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P2086 error code signifies a decrease in engine performance and is generally known as the exhaust gas temperature sensor circuit range/performance bank 2 sensor 2. The temperature of the exhaust gas which goes in and out of the selective catalytic reduction is informed to the ECM by the exhaust gas temperature sensor. The P2086 error will get stored in the vehicle if the PCM finds an irregular signal from the EGT sensor.

P2086 is a general type of error code for the EGT sensor circuit, where the signal to the engine control module for the bank 2 sensor 2 seems to be out of range. This actually means that the return signal of the sensor signal voltage seems to be away from the sensor range and does not meet the specification.

What causes this problem with the Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 2?

• The ECM return signal from the EGT sensor bank 2 sensor 2 might not be giving a steady reading output.
• When the system works correctly, the signal might not be within the specification.
• The ECM might turn on the CEL if it finds out that the voltage return might be more or less and if it is not sending a correct voltage return.
• Either the wire or the connection to the sensor will be very loose or the contact might be poor.
• Either the wire or the sensor might
• be shorted to power.

1. Powertrain Control Module - The PCM can be faulty if the performance of the engine is very poor. Get the right replacement for your faulty PCM from PartsAvatar.
2. Engine Control Module - Does your engine turn off without any reason? Then it’s a high time to replace your ECM as it can be faulty.
3. Exhaust Gas Temperature Sensor - Illumination of the check engine light and DPF light show that the EGT sensor is defective. Get rid of it as soon as possible.
4. Diesel Particulate Filter - If the turbo fails or if there is too much of oil dripping into the diesel particulate filter, then it can turn out to be defective. Avoid the P2086 error by replacing the faulty DPF.
5. Catalytic Converter - A damaged catalytic converter will show signs of failing when the engine misfires. Get rid of it immediately by replacing it with a new catalytic converter.
6. EGR Valve - One of the common symptoms for a faulty EGR valve is a rough idle. Replacing the damaged EGR valve can help you to avoid the P2086 error code from getting stored.

For us our customers are everything, and that’s why we will help you to diagnose P2086 code by mentioning some important symptoms below:

Common Symptoms

• If the illumination of the check engine light takes place, then it will be stored as a fault in the memory of the ECU.
• P2086 error may also rise due to engine fault which in turn illuminates the diesel particulate filter light.

After you know the symptoms of your vehicle’s problem, it becomes easy to detect it and get started with solving it. So, next on our list is a few common steps to correct this issue with your vehicle’s.

• The sensor 1 has to be changed after the corrosion has been cleaned off the connection.
• The wire or the connection to the exhaust temperature sensor assembly has to be fixed.
• In case of short circuit, the ECM has to be changed in the ECM temperature sensor circuit.

To do all this, you will need a few high-quality auto parts such as DTC, EGT, catalytic converter, EGR, powertrain control module, diesel oxidation catalyst and so on. From where will you get them? From your local store? Well, why go there when you can order quality parts with us while sitting in the comfort of your home. So, just browse through our website and order your needed parts today.

Here are some steps which you should follow in order to diagnose this P2086 fault code:

• Firstly you have to scan every code and document the code in the memory of the ECM.
• Now inspect the freeze frame data.
• Now you have to start diagnosing the code as per the manufacturer’s pinpoint test in order to check the signal of the sensor.
• See if there are any loose or eroded terminals by checking the connection of the sensor.
• Separate the sensor and check if the voltage at the sensor is thee same as that of the reference voltage.
• Now the return voltage to the sensor has to be carefully checked to see if the sensor to the return voltage is shorted.
• Heat the sensor with the help of a hair dryer or heat gun and keep looking at the ohmmeter. As the sensor gets heated, there should be a drop in resistance and it should keep rising when it cools down. Replace it, if this doesn’t happen.
• If everything works perfectly at this point, turn on the key and calculate the voltage at the engine side of the pigtail. If you don’t find 5 volts at the connector, you have to replace the computer.
• Another reason for this error code to get stored in the vehicle is because of the catalytic converter that is substituted in favor of the catback system. It is an illegal procedure in most states which is punishable and if you are caught, you must pay a huge fine.

Common Mistakes When Diagnosing the P2086 Code

• Clearing off the ECM memory codes before analyzing the failure of the freeze frame data.
• Forgetting to clear the ECM codes after fixing the P2086 error.
• Altering the sensor, while the connector still has corrosion in the connection.