AutoCodes – Chevrolet – P20E5 Chevrolet

P20E5 Chevrolet Code - Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. Common causes include Faulty Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted, Exhaust Gas Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P20E5 Chevrolet indicates Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2.
Common causes
Common causes include Faulty Exhaust Gas Temperature Sensor, Exhaust Gas Temperature Sensor harness is open or shorted, Exhaust Gas Temperature Sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 1,224
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 15, 2019
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Code P20E5 Chevrolet Description

The Powertrain Control Module (PCM) continuously monitors the Exhaust Gas Temperature Sensor (EGTS) for proper circuit continuity and out of range high values. The EGTS is located in front of the Diesel Oxidation Catalyst (DOC) and/or in front of the Diesel Particulate Filter (DPF). The EGTS detects exhaust gas temperature and converts it into a voltage and feeds back to the PCM with the voltage signal in order to control engine conditions to effectively reduce emissions. The PCM sets the P20E5 OBDII code when the Exhaust Gas Temperature Sensor is out of factory specifications.
OBDII Code P20E5 Chevrolet - Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2 - AutoCodes.com
P20E5 Chevrolet Code - Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2

What are the Possible Causes of the DTC P20E5 Chevrolet?

  • Faulty Exhaust Gas Temperature Sensor
  • Exhaust Gas Temperature Sensor harness is open or shorted
  • Exhaust Gas Temperature Sensor circuit poor electrical connection
  • Exhaust leaks
  • Excessive particulate matter buildup on sensor

How to Fix the DTC P20E5 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 P20E5 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 P20E5 Chevrolet code?

Need more information on how to fix the P20E5 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.

Frequently Asked Questions about P20E5 Chevrolet Code

1. What does the OBDII code P20E5 mean on a Chevrolet?

The P20E5 code indicates a correlation issue between Exhaust Gas Temperature (EGT) Sensor 1 and Sensor 2 in Bank 2, typically caused by faulty sensors or wiring.

2. What are the symptoms of the P20E5 code on a Chevrolet?

Common symptoms include a check engine light, reduced fuel efficiency, poor engine performance, and possible activation of limp mode.

3. What causes the P20E5 code on a Chevrolet?

Causes include a malfunctioning EGT sensor, damaged wiring or connectors, sensor contamination, or issues with the exhaust system.

4. How do I diagnose the P20E5 code on a Chevrolet?

Start by inspecting the wiring and connectors for damage, check the EGT sensors for proper operation, and use a scan tool to compare temperature readings between Sensor 1 and Sensor 2.

5. Can I drive my Chevrolet with the P20E5 code?

Driving with the P20E5 code is possible but not recommended, as it may lead to reduced engine performance and potential damage to the exhaust or emissions system.

6. How do I fix the P20E5 code on a Chevrolet?

Repairs typically involve replacing the faulty EGT sensor, repairing damaged wiring, or cleaning sensor connections if contamination is present.

7. How much does it cost to repair the P20E5 code on a Chevrolet?

The cost to replace an EGT sensor ranges from $100 to $300, depending on labor and parts, while wiring repairs may vary based on severity.

8. Can a faulty EGT sensor cause other problems in my Chevrolet?

Yes, a faulty EGT sensor can lead to inaccurate temperature readings, which may affect emissions control, fuel efficiency, and exhaust system performance.

9. Where is Bank 2 located on a Chevrolet engine?

Bank 2 refers to the side of the engine opposite Bank 1; on V-type engines, this is typically the side without the #1 cylinder.

10. Will clearing the P20E5 code fix the issue on my Chevrolet?

Clearing the code may turn off the check engine light temporarily, but the underlying issue must be addressed to prevent the code from returning.

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