P20E4
Exhaust Gas Temperature Sensor 2/3 Correlation Bank 1
P20E4 is an OBD-II diagnostic trouble code meaning: Exhaust Gas Temperature Sensor 2/3 Correlation Bank 1. Common causes: exhaust temperature sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.
Symptoms
- Check Engine light comes on
- Deterioration of vehicle dynamics
- Increased fuel consumption
- Problems with diesel particulate filter regeneration
- Possible transition to emergency mode
Causes
- Exhaust temperature sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with the engine control unit
- Mechanical damage to wiring
How to Fix
- Check the readings of the exhaust temperature sensors with a scanner
- Inspect the wiring and sensor connectors
- Check sensor resistance
- If necessary, replace the faulty sensor
- Check the operation of the system after repair
Related codes
Error P20E4 by Vehicle Brand
FAQ
What does the P20E4 code mean?
P20E4 is an OBD-II diagnostic trouble code that indicates: Exhaust Gas Temperature Sensor 2/3 Correlation Bank 1
What causes a P20E4 error code?
The most common causes of P20E4 include: Exhaust temperature sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the engine control unit.
How do I fix a P20E4 diagnostic trouble code?
To fix P20E4: Check the readings of the exhaust temperature sensors with a scanner. Inspect the wiring and sensor connectors. Check sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20E4?
Yes, but get it checked soon
How much does it cost to fix P20E4?
The estimated repair cost for P20E4 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat