P2033 Fault Code

Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 2

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2033 fault code indicates an issue with the exhaust gas temperature sensor circuit for Bank 1, specifically involving Sensor 2. This sensor plays a critical role in monitoring the temperature of the exhaust gases, which helps the engine control module (ECM) manage emissions and optimize engine performance.

What are the symptoms of the P2033 code?

• Check Engine Light (CEL) illumination
• Poor engine performance or reduced fuel efficiency
• Increased emissions or failure of emissions test
• Potential overheating of exhaust system components

What causes the P2033 code?

• Faulty exhaust gas temperature sensor
• Wiring issues such as short circuits or breaks in the harness
• Poor connections at the sensor or ECM
• Malfunctioning ECM
• Exhaust leaks affecting sensor readings

How to fix P2033?

• Start by checking the exhaust gas temperature sensor for faults.
• Inspect the wiring and connectors associated with Sensor 2 for any damage.
• Replace the sensor if it is found to be defective.
• Clear the fault codes from the ECM and conduct a test drive to ensure the issue is resolved.
• If the problem persists, review the ECM for potential malfunctions.