P20E2 OBD Error Code: Problem & Solutions
OBD Code P20E2 - Exhaust Gas Temperature Sensor 1/2 Correlation Bank 1
The
trouble code P20E2 can be defined as Exhaust Gas Temperature Sensor 1/2
Correlation Bank 1. The exhaust gas temperature sensor is being monitored by
the engine control module. This trouble code would be set by the ECM when the
exhaust gas temperature sensor would not be as per the specifications set by
the manufacturer.
Learn More About OBD Error Code P20E2
The engine control module, powertrain control module or the transmission control module monitors this circuit depending upon the particular automobile. Is the check engine light illuminating on the dashboard? Are you experiencing reduced engine performance along with affected fuel economy? Is there black smoke emitting from the exhaust pipe? All these are the indications of increased emissions and affected exhaust system which in this case can be due to bad exhaust gas temperature sensor, thus causing OBD code P20E2 to get stored in the powertrain control module.
What causes this problem with the Exhaust Gas Temperature Sensor 1/2 Correlation Bank 1?
- Malfunctioning exhaust gas temperature sensor
- Exhaust gas temperature sensor harness might be open or little
- Substandard electrical connection in the exhaust gas temperature sensor circuit
- Leakage in the exhaust
- There might be a lot of particulate matter buildup on sensor
Replace/Repair These Parts To Fix Code P20E2
- Engine Control Module – ECM faults are rare but can be a big problem as faulty ECM will cause wrong vehicle operations and can also result in wrong OBD codes getting stored in the system which can also cause misdiagnosis. Thus, replace faulty ECM components now!
- Powertrain Control Module – Check for PCM error which might be due to circuit faults that might require complete replacement and reprogramming. Replace it now!
- Diagnostic Tools – Buy quality diagnostic tools to check and diagnose OBD code P20E2 error with the help of experienced mechanic. Visit us today!
- Exhaust Gas Recirculation Valve – Bad EGR valve can cause many performance issues. Common signs include engine performance issues like decreased power and acceleration, rough idle, and the Check Engine Light coming on. Thus, replace faulty EGR valve now!
- Diesel Exhaust Fluid Pump – If the DEF pump will not function properly, it can cause increased emissions in the exhaust system and reduced the longevity of the filtration elements in the exhaust system. Thus, replace faulty pump immediately.
- Fuel Injection – This system is responsible for supplying fuel with certain pressure, thus assisting the fuel delivery system and engine combustion process. Replace faulty/damaged injectors now!
- Engine Wiring Harness – Damaged, broken or corroded wiring can cause the fuel delivery system to fail and the components to not work properly. These are easier to check and replace. Purchase new wiring harness and replace the faulty one.
Symptoms Of The OBD Error Code P20E2
Willing to know some common symptoms of OBD Trouble Code P20E2? Your wish is our demand. Have a look at them below:
Common Symptoms
- Visibility in the check engine light
How To Correct Exhaust Gas Temperature Sensor 1/2 Correlation Bank 1 Issue
If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P20E2:
- Repair or replace the quirky exhaust gas temperature sensor circuit
- Rehabilitate the defaults in the exhaust gas temperature sensor harness
- Exhaust gas temperature sensor replacement
- Circuit wiring and connector replacement
- Controller and PCM reprogramming
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Easy Diagnosis Of Engine Error OBD Code P20E2
If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:
- Check for SCR controller and DEF related code error that might also get stored in the PCM along with this code, which can solve the problem easily.
- Inspect the air injector sensor and DEF pump area for any corrosion or leakages on the exterior and if found, suspect it to be failed.
- One will require tools like a diagnostic scanner, digital volt/ohmmeter, and auto motive stethoscope.
- Connect the OBD scanner and retrieve the entire coded and freeze frame the data. After doing that test run the vehicle again under same circumstances to see if the code returns to make sure which codes are persistent (in case of more than one code).
- Check for damaged, broken and corroded wiring and connector to the sensor circuit and replace them, if required.
- Use the DVOM to test for voltage from the exhaust gas temperature sensor and check for fluctuations. If the readings are not under specified range, suspect for exhaust gas temperature sensor failure and replace it immediately.
- If everything seems to work fine, then check for faulty PCM and replace or reprogram as required.
Common Mistakes When Diagnosing The P20E2 Code
- Some issues related to the exhaust gas temperature sensor
- Failure in the powertrain control module
- Issues related to the wiring