P2208

NOx Sensor Heater Sense Circuit Bank 1 Sensor 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Reduced engine power
Increased fuel consumption
Unstable engine idling
Dips during acceleration

Causes

Open or short circuit in the NOx sensor heater circuit
Malfunction of the NOx sensor itself
Wiring harness damage
Poor contact in the sensor connector
Engine control unit malfunction

How to Fix

Check the continuity of the NOx sensor heater circuit
Inspect connectors and wiring harness for damage
Check sensor heater resistance
Replace NOx sensor if necessary
Reset the error code and check if it returns

Related codes

P2206 P2207 P2209