Fault Code P2209
Code meaning, symptoms, possible causes, part number, and estimated cost.
P2209
NOx Sensor Circuit Intermittent/Erratic Bank 2
This code indicates an intermittent or erratic fault in the Nitrogen Oxide (NOx) sensor circuit for engine bank 2. The sensor is not providing consistent readings to the Engine Control Module (ECM).
Part Details
Part Name
NOx Sensor Bank 2
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪700 - ₪2,500
Engine Location
Exhaust system
Symptoms
- Check Engine Light on
- Erratic engine performance
- Increased fuel consumption
- Strong exhaust odor
Possible Causes
- 1Loose connection or corrosion on NOx sensor
- 2Partially faulty NOx sensor
- 3Intermittent wiring issues
- 4ECM software glitch
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