The P2034: Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 2 code refers to an issue in the circuit of the exhaust gas temperature (EGT) sensor located on Bank 2, Sensor 2. This fault could be due to a defective sensor, wiring problems, or circuit issues.
P2034 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P2034: Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 2 |
| Is it serious? | Yes, the EGT sensor helps monitor and control exhaust gas temperatures, which is critical for protecting components like the catalytic converter and diesel particulate filter (DPF). |
| Possible causes | – Faulty exhaust gas temperature sensor – Wiring or connector issues – Sensor circuit problems |
| How to diagnose? | – Test the exhaust gas temperature sensor – Inspect wiring and connectors – Check sensor circuit for issues |
P2034 Meaning
The P2034: Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 2 code indicates a fault in the circuit of the EGT sensor located on Bank 2 (the side opposite Bank 1), Sensor 2 (typically after the catalytic converter or diesel particulate filter). The EGT sensor is essential for monitoring and controlling exhaust temperatures to prevent damage to emission control systems like the catalytic converter and DPF.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to look for additional codes related to the exhaust system, such as those concerning the catalytic converter or DPF. Other codes may provide more insight into the issue. | OBD-II Scanner |
| Test the Exhaust Gas Temperature Sensor | Use a multimeter or diagnostic tool to test the EGT sensor’s resistance and output on Bank 2 Sensor 2. Compare the readings with the manufacturer’s specifications to ensure the sensor is working properly. | Multimeter, Diagnostic Tool |
| Inspect Wiring and Connectors | Visually inspect the wiring and connectors leading to the EGT sensor for damage, corrosion, or disconnections that could cause circuit faults. | Flashlight, Multimeter |
| Check Sensor Circuit Continuity | Perform a continuity test on the wiring to check for any shorts, breaks, or high resistance in the circuit that could be causing the fault. | Multimeter |
| Inspect the Exhaust System | Inspect the exhaust system near the sensor for any damage, blockages, or leaks that could affect sensor readings or cause the sensor to fail. Ensure the sensor is not contaminated by soot or carbon buildup. | Flashlight, Exhaust Cleaner |
| Replace the Exhaust Gas Temperature Sensor | If the sensor is faulty or outside of manufacturer specifications, replace it. Ensure the new sensor is installed properly to avoid further issues. | Replacement EGT Sensor, Wrench |
| Repair or Replace Damaged Wiring | If wiring, connectors, or related components are found to be faulty, repair or replace them to restore proper signal transmission. | Wiring Repair Kit |
| Clear the Code and Test Drive | After completing the repairs, clear the P2034 code using an OBD-II scanner. Take the vehicle for a test drive to ensure the sensor is functioning correctly and the issue has been resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | After the test drive, re-scan the vehicle to verify that the P2034 code has not returned. | OBD-II Scanner |
OBD-II scanner Buyer’s Guide
- Scanner features explained
- Different types of scanners
- Scanners for coding/odometer/ECU/checks
- Best picks + discount codes
Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)