P2195 means o2 sensor signal stuck lean (bank 1, sensor 1). The upstream O2 sensor is stuck reporting a lean condition. Either the sensor is lying, or the engine genuinely is runni
Drive gently and get it diagnosed within days.
The upstream O2 sensor is stuck reporting a lean condition. Either the sensor is lying, or the engine genuinely is running lean — both need investigation.
Stuck sensor element.
Genuine lean condition.
Weak pump or clogged filter.
False lean reading.
Fuel starvation.
Typically $150–$600
O2 sensor typically $150–$400; fuel system diagnosis/repair typically $200–$600. Estimates vary by vehicle. Costs are estimates and vary by vehicle, location, and shop.
Safe to drive, but a real lean condition can cause misfires and converter damage over time. Diagnose within days.
Typically $150–$600. O2 sensor typically $150–$400; fuel system diagnosis/repair typically $200–$600. Estimates vary by vehicle.
Drive gently and get it diagnosed within days.
The most common cause is failing o2 sensor. Stuck sensor element.