P20E2

Exhaust Gas Temperature Sensor 1/2 Correlation Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Problems with diesel particulate filter regeneration (if installed)
Incorrect operation of the engine control system

Causes

Malfunction of one of the exhaust temperature sensors
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Wiring harness damage
Problems with the engine control unit

How to Fix

Check the resistance and functionality of the exhaust temperature sensors
Inspect wiring and connectors for damage
Check the integrity of the sensor circuit
Replace the faulty sensor if necessary
Reset the error and check if it returns

Related codes

P20E1 P20E3 P20E4