OBDII Code List

P20E3 CHEVROLET - Exhaust Gas Temperature Sensor 1/3 Correlation Bank 1

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
Comments  |  Add Comment

Possible causes

  • 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

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P20e3 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 P20E3 OBDII code when the Exhaust Gas Temperature Sensor is out of factory specifications.
OBDII Code P20e3 Chevrolet - Exhaust Gas Temperature Sensor 1/3 Correlation Bank 1 -

Need more help?

Get the P20e3 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Related Information

P20E3 CHEVROLET Comments

Help us improve Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P20e3 Chevrolet code? Have you replaced any parts?
Any information is appreciated. Thanks
Top ⇧