What Can Cause A P2197 Code?
What Can Cause A P2197 Code? Frayed oxygen sensor circuit wiring/connectors. Faulty bank 2 heated oxygen sensor 1. Malfunctioning fuel injector. Vacuum leaks. Fuel pressure too low. Debris in Mass Airflow Sensor. Exhaust leak. What causes oxygen sensor code? Deceptive Oxygen Sensor Codes Engine vacuum leaks that create a lean exhaust condition. Mass airflow sensor