P2472

Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 1 Sensor 4

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$39–94 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable engine idling
Problems with the exhaust gas recirculation (EGR) system

Causes

Open or short circuit in the EGT sensor circuit
Poor contact in the sensor connector
Malfunction of the exhaust temperature sensor itself
Damage to wiring harness due to high temperature
Problems with the engine control unit (ECU)

How to Fix

Check the continuity of the EGT sensor circuit (open/short circuit)
Inspect the connectors and contacts of the sensor for oxidation
Check the resistance of the exhaust temperature sensor
Replace EGT sensor if necessary
Check the functionality of the system after repair

Related codes

P2471 P2473 P0544