P2086 GMC Code - Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 2
Quick Answer
The P2086 GMC code indicates a problem with the Exhaust Gas Temperature (EGT) sensor circuit for Bank 2 Sensor 2. Common causes include Faulty EGT Sensor: The EGT sensor itself may be defective or damaged, causing inaccurate readings, Wiring or Connector Issues: Damaged wiring or connectors in the sensor circuit can disrupt the signal between the sensor and ECM, Exhaust Leaks: Leaks in the exhaust system can affect sensor readings and trigger the P2086 code. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P2086 GMC indicates Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 2.
- Common causes
- Common causes include Faulty EGT Sensor: The EGT sensor itself may be defective or damaged, causing inaccurate readings, Wiring or Connector Issues: Damaged wiring or connectors in the sensor circuit can disrupt the signal between the sensor and ECM, Exhaust Leaks: Leaks in the exhaust system can affect sensor readings and trigger the P2086 code.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P2086 GMC Description
The P2086 GMC code indicates a problem with the Exhaust Gas Temperature (EGT) sensor circuit for Bank 2 Sensor 2. This sensor is responsible for monitoring the exhaust gas temperature after it has passed through the catalytic converter. The EGT sensor helps the engine control module (ECM) monitor the efficiency of the catalytic converter and adjust fuel injection and timing accordingly. When the ECM detects that the EGT sensor circuit's performance or range is outside the expected parameters, it triggers the P2086 trouble code.
Common Causes of P2086 GMC
- Faulty EGT Sensor: The EGT sensor itself may be defective or damaged, causing inaccurate readings.
- Wiring or Connector Issues: Damaged wiring or connectors in the sensor circuit can disrupt the signal between the sensor and ECM.
- Exhaust Leaks: Leaks in the exhaust system can affect sensor readings and trigger the P2086 code.
- ECM Malfunction: A malfunctioning ECM can also cause issues with the EGT sensor circuit, leading to this code.
Symptoms of P2086 GMC
- Check Engine Light: The most common symptom associated with this code is the illumination of the Check Engine Light on the dashboard.
- Reduced Engine Performance: The vehicle may experience reduced power and acceleration due to the ECM entering failsafe mode.
- Poor Fuel Efficiency: A faulty EGT sensor can cause incorrect fuel injection and timing, leading to decreased fuel efficiency.
- Rough Idle: The engine may run rough or have erratic idling behavior due to incorrect sensor readings.
- Increased Emissions: A malfunctioning EGT sensor can result in increased emissions, potentially causing the vehicle to fail emissions tests.
How to Fix P2086 GMC
- Diagnose the Issue: Use a scan tool to read the trouble code and perform a thorough inspection of the EGT sensor, wiring, and connectors.
- Replace EGT Sensor: If the sensor is found to be faulty, replace it with a new, OEM-quality sensor.
- Repair Wiring or Connectors: If wiring or connectors are damaged, repair or replace them as needed to restore proper connectivity.
- Check for Exhaust Leaks: Inspect the exhaust system for leaks and repair any issues that could be affecting sensor readings.
- Clear Codes and Test Drive: After completing the repairs, clear the trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P2086 GMC
The cost of repairing a P2086 GMC code can vary depending on the specific cause of the issue and the labor rates in your area. Generally, the parts cost for a new EGT sensor can range from $50 to $150, while labor costs can add an additional $100 to $200. Overall, you can expect to pay anywhere from $150 to $350 for this repair, including parts and labor. It's important to note that labor rates at auto repair shops can vary, so it's best to get a detailed estimate from a trusted mechanic in your area.
Need more information about the P2086 GMC code?
Need more information on how to fix the P2086 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P2086 GMC code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P2086 GMC Code
What does the OBDII code P2086 mean for my GMC vehicle?
The P2086 code indicates that there is a range or performance issue with the exhaust gas temperature (EGT) sensor circuit for Bank 2 Sensor 2, which monitors the temperature of the exhaust gases.
What are common symptoms of the P2086 code?
Common symptoms include the check engine light being illuminated, decreased engine performance, increased fuel consumption, and potential issues with emissions controls.
What could cause the P2086 code to trigger?
Causes can include a faulty exhaust gas temperature sensor, damaged wiring or connectors in the sensor circuit, exhaust leaks, or issues with the engine's computer (ECM).
How can I diagnose the P2086 code?
Start by using an OBDII scanner to confirm the code and check for any related codes. Inspect the wiring and connectors of the EGT sensor for damage, and test the sensor's resistance and voltage according to the manufacturer's specifications.
Can I drive my vehicle with a P2086 code?
While it is possible to drive with a P2086 code, it is not recommended as it may lead to reduced engine performance and increased emissions, potentially causing further damage over time.
What repairs are commonly needed for a P2086 code?
Common repairs include replacing the faulty exhaust gas temperature sensor, repairing or replacing damaged wiring or connectors, or addressing any exhaust leaks that may be affecting the sensor's readings.
How much does it typically cost to fix a P2086 code?
Repair costs can vary widely depending on the specific issue, but replacing the EGT sensor usually costs between $100 to $300, including parts and labor.
Is the P2086 code serious?
Yes, the P2086 code can indicate issues that may affect engine performance and emissions. Addressing it promptly helps ensure your vehicle runs efficiently and meets environmental standards.
Can the P2086 code be reset, and will it come back?
The code can be reset using an OBDII scanner, but if the underlying issue is not resolved, the code is likely to return after some driving cycles.
Discuss the causes and fixes for P2086 GMC OBDII Code
Code P2086 GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.