P2484

Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 1 Sensor 5

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable idling
Possible overheating of the catalyst

Causes

Open or short circuit in the EGT sensor circuit
Poor contact in the sensor connector
Malfunction of the temperature sensor itself
Wiring harness damage
Problems with the engine control unit

How to Fix

Check the integrity of the sensor wiring and connectors
Measure the sensor resistance (compare with standards)
Check the reference voltage and ground in the sensor circuit
Replace exhaust temperature sensor if necessary
Clear error codes and check if the fault returns

Related codes

P2483 P2485 P0546