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P2035 Chevrolet Code - Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 2

Quick Answer

The P2035 Chevrolet code indicates a problem with the exhaust gas temperature sensor circuit on bank 2 sensor 2. Common causes include Faulty Sensor: The exhaust gas temperature sensor on bank 2 sensor 2 may be faulty and not providing accurate readings to the ECM, Wiring Issues: Damage to the wiring harness or poor connections can cause a low voltage signal from the sensor to the ECM, ECM Malfunction: A malfunction in the engine control module (ECM) could also be causing the low voltage signal from the sensor. 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
P2035 Chevrolet indicates Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 2.
Common causes
Common causes include Faulty Sensor: The exhaust gas temperature sensor on bank 2 sensor 2 may be faulty and not providing accurate readings to the ECM, Wiring Issues: Damage to the wiring harness or poor connections can cause a low voltage signal from the sensor to the ECM, ECM Malfunction: A malfunction in the engine control module (ECM) could also be causing the low voltage signal from the sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2035 Chevrolet Description

The P2035 Chevrolet code indicates a problem with the exhaust gas temperature sensor circuit on bank 2 sensor 2. This sensor is responsible for monitoring the exhaust gases leaving the catalytic converter on bank 2, which is typically the side of the engine where cylinder 2 is located. The sensor measures the temperature of the exhaust gases to help the engine control module (ECM) adjust fuel delivery and combustion timing for optimal performance and emissions control.

OBDII Code P2035 Chevrolet - Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 2
P2035 Chevrolet Code - Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 2

Common Causes of P2035 Chevrolet

  1. Faulty Sensor: The exhaust gas temperature sensor on bank 2 sensor 2 may be faulty and not providing accurate readings to the ECM.
  2. Wiring Issues: Damage to the wiring harness or poor connections can cause a low voltage signal from the sensor to the ECM.
  3. ECM Malfunction: A malfunction in the engine control module (ECM) could also be causing the low voltage signal from the sensor.
  4. Exhaust System Leak: A leak in the exhaust system near the sensor could also trigger the P2035 code.

Symptoms of P2035 Chevrolet

  1. Check Engine Light: The most common symptom associated with the P2035 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Decreased Fuel Efficiency: A faulty exhaust gas temperature sensor can cause the engine to run less efficiently, leading to decreased fuel economy.
  3. Rough Idling: The engine may exhibit rough idling or hesitation when the exhaust gas temperature sensor is not functioning properly.
  4. Failed Emissions Test: If the sensor is malfunctioning, it can cause the vehicle to fail an emissions test due to increased emissions.

How to Fix P2035 Chevrolet

  1. Diagnostic: The first step in repairing the P2035 code is to conduct a thorough diagnostic to determine the exact cause of the issue. This may involve testing the sensor, checking the wiring, and inspecting the ECM.
  2. Sensor Replacement: If the sensor is found to be faulty, it will need to be replaced with a new one. The sensor is typically located after the catalytic converter on bank 2.
  3. Wiring Repair: If wiring issues are identified, the damaged wires will need to be repaired or replaced to ensure proper connectivity.
  4. ECM Reprogramming: In some cases, the ECM may need to be reprogrammed or replaced to address the low voltage signal from the sensor.
  5. Clear Codes: Once the repairs are completed, the codes stored in the ECM will need to be cleared to turn off the check engine light and reset the system.

Cost to Fix P2035 Chevrolet

The cost of repairing the P2035 code can vary depending on the specific cause of the issue and the labor rates in your area. Typically, the price for parts such as a new exhaust gas temperature sensor can range from $50 to $200, while labor costs can add an additional $100 to $200. Overall, the total repair cost for this issue may range from $150 to $400. It's important to note that these are rough estimates, and actual costs may vary based on the factors mentioned above. Be sure to consult with a certified mechanic or auto repair shop for a more accurate cost estimate for your specific vehicle.

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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.

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