AutoCodes – Chevrolet – P2085 Chevrolet

P2085 Chevrolet Code - Exhaust Gas Temperature Sensor 2 Circuit Intermittent

Quick Answer

The Exhaust Gas Temperature Sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. Common causes include Exhaust leaks, Faulty Exhaust Gas Temperature Sensor (EGTS) 2, Exhaust Gas Temperature Sensor 2 harness is open or shorted. 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: P2085 Chevrolet indicates Exhaust Gas Temperature Sensor 2 Circuit Intermittent.
Common causes: Common causes include Exhaust leaks, Faulty Exhaust Gas Temperature Sensor (EGTS) 2, Exhaust Gas Temperature Sensor 2 harness is open or shorted.
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.

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Code Popularity 1,809

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 26, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2085 Chevrolet Description

The Exhaust Gas Temperature Sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. The exhaust temperature sensor 1 is the first exhaust temperature sensor on the exhaust system, the following exhaust temperature sensors are counted upward from the engine outlet to the exhaust system end. The Engine Control Module (ECM) supplies 5 V to the exhaust gas temperature signal circuit and supplies a ground to the low reference circuit. The Exhaust Gas Temperature Sensor temperature information is used by the ECM during the exhaust gas particulate filter cleaning process. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the Exhaust Gas Temperature Sensor resistance has changed greater than a calibrated amount in less than 1 s.

OBDII Code P2085 Chevrolet - Exhaust Gas Temperature Sensor 2 Circuit Intermittent - AutoCodes.com — P2085 Chevrolet Code - Exhaust Gas Temperature Sensor 2 Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P2085 Chevrolet?

Exhaust leaks
Faulty Exhaust Gas Temperature Sensor (EGTS) 2
Exhaust Gas Temperature Sensor 2 harness is open or shorted
Exhaust Gas Temperature Sensor 2 circuit poor electrical connection
Excessive particulate matter buildup on sensor
Faulty Engine Control Module (ECM)

How to Fix the DTC P2085 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2085 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2085 Chevrolet code?

Need more information on how to fix the P2085 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2085 Chevrolet code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2085 Chevrolet Code

1. What are the common symptoms of OBDII code P2085 in a Chevrolet related to the Exhaust Gas Temperature Sensor 2 Circuit Intermittent?

- Common symptoms include poor engine performance, reduced fuel efficiency, and possible illumination of the check engine light.

2. What are some potential causes of OBDII code P2085 in a Chevrolet?

- Potential causes can include a faulty exhaust gas temperature sensor, damaged wiring or connectors, or issues with the sensor circuit.

3. How can I diagnose the source of OBDII code P2085 in my Chevrolet?

- A thorough diagnostic process involves checking the sensor's wiring and connectors for damage, testing the sensor's functionality, and inspecting the sensor circuit for any faults.

4. Can I drive my Chevrolet with an active OBDII code P2085 related to the Exhaust Gas Temperature Sensor 2 Circuit Intermittent?

- It is not recommended to drive your vehicle with this code active, as it can lead to further damage and potential safety issues. It's best to address the problem promptly.

5. Are there any repair tips for fixing OBDII code P2085 in a Chevrolet?

- Repair tips may include replacing the exhaust gas temperature sensor, repairing damaged wiring or connectors, or resetting the engine control module after resolving the issue.

6. How much does it typically cost to repair OBDII code P2085 in a Chevrolet at a dealership or auto repair shop?

- The cost of repair can vary depending on the specific issue and labor rates, but it may range from $100 to $300 for parts and labor.

7. Can a DIY enthusiast fix OBDII code P2085 in a Chevrolet at home?

- Depending on your skill level and access to tools, it may be possible to address this code at home by following repair guides or tutorials specific to your Chevrolet model.

8. Is it necessary to clear the OBDII code P2085 after repairing the issue in a Chevrolet?

- Yes, it is recommended to clear the code using an OBDII scanner after resolving the problem to reset the check engine light and ensure proper functioning of the vehicle.

9. How urgent is it to address OBDII code P2085 related to the Exhaust Gas Temperature Sensor 2 Circuit Intermittent in a Chevrolet?

- While the severity may vary, it is generally advisable to address this code promptly to prevent potential engine damage and maintain optimal vehicle performance.

10. Will OBDII code P2085 cause my Chevrolet to fail an emissions test?

- Yes, an active OBDII code P2085 can cause your Chevrolet to fail an emissions test due to the malfunction in the Exhaust Gas Temperature Sensor 2 Circuit.