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P2082 OBD-II Trouble Code: Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 1

Check Engine Light

What the P2082 code means?

The P2082 code means that the exhaust gas temperature (EGT) sensor has been found to have out of range sensor readings. When these out of range sensor readings are found with the bank 2 sensor 1, the ECU detects this and causes the Check Engine light to set. The Check Engine light will be visible on the dashboard. With the Check Engine light, the ECU triggers a failsafe mode to protect the vehicle. The failsafe mode is set until normal operation is detected or the fault causing the code is repaired.

What causes the P2082 code?

There are a few possible causes for the P2082:

  • Open or short in the EGT wiring harness
  • Exhaust leak
  • Exhaust gas temperature sensor failure
  • Poor electrical connection

What are the symptoms of the P2082 code?

In most causes, the driver may notice no ill symptoms with the P2082 code. Most cases the Check Engine light will set and this is the only indicator that any fault is present.

How does a mechanic diagnose the P2082 code?

A mechanic will begin by checking the ECU for any stored codes, these may include pending codes as well as history codes. Each code will have its own freeze frame data associated with each, this tells the technician what the vehicle condition was when the code was triggered such as RPM, speed, coolant temp and calculated load. The codes and freeze frame data will be noted then cleared.

Next the technician will take the vehicle on a test drive to attempt to duplicate the code. Once the test drive has been performed the code will be confirmed as P2082. The technician will now visually look over the vehicle, checking for any signs of damage to the EGT sensor or its wiring. Now, the scan tool will be used to check the datastream to read the EGT sensor readings and compare bank 1 and 2. Next, the technician will use a multimeter to check for the proper voltage at the bank 2 sensor 1 EGT sensor. Lastly, the exhaust will be inspected for leaks.

Common mistakes when diagnosing the P2082 code

A common mistake is overlooking an exhaust leak or broken wire as the cause of the P2082 code. These are simple causes and can be easily fixed. If they are not noticed because diagnostic steps were not performed, larger repairs may be done wasting time and money.

How serious is the P2082 code?

The P2082 will not prevent the vehicle from being driven once the code is triggered since by itself it usually doesn’t have any symptoms. P2082 will however cause the vehicle to fail emissions testing and should be resolved as soon as possible just like any other code.

What repairs can fix the P2082 code?

The most likely repairs needed for the P2082 code are:

  • Replace EGT sensor
  • Repair or replace wiring harness
  • Poor electrical connection resolved.

Additional comments for consideration regarding the P2082 code

A few speciality tools go a long way in helping diagnose the P2082 code. The first is an automotive use multimeter. These are used to check for voltage, amps and ohms at various sensors. Without one of these, this code would be impossible to diagnose. The other tool is an professional level scan tool. These allow professionals access to the engine’s datastream which tells us important sensor data that may normally be very difficult to obtain.

Need help with a P2082 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
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