P2195 OBD-II: O2 Sensor Signal Biased/Stuck Lean

P2195 Severity

Moderate

Will P2195 go away on its own?

Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.

For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.

Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.

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What causes OBD-II fault code P2195?

The Oxygen Sensor (or Air/Fuel Ratio Sensor) tells the engine control module how much oxygen is in the exhaust stream between the engine and the Catalytic Converter. The Oxygen Sensor's signal is supposed to fluctuate a minimum of 10 times per second within a specified range. If the engine's control module (PCM) determines that the Oxygen Sensor is not fluctuating throughout the normal range, the PCM will set code P2195.

What Does P2195 Code Mean?

OBD-II Code P2195 is defined as a O2 Sensor Signal Biased/Stuck Lean

P2195 Symptoms

Decreased engine performance
Increased fuel consumption

Common Problems That Trigger the P2195 Code

Oxygen sensor failure
Powertrain Control Module (PCM) failure
Powertrain Control Module (PCM) software needs to be updated
Wiring issue

Common Repairs Needed for the P2195 Code

Oxygen Sensor Replacement

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Other OBD-II Codes

P2194: System Too Rich at Higher Load P2193: System Too Lean at Higher Load P2192: System Too Rich at Higher Load P2191: System Too Lean at Higher Load P2190: System Too Rich at Idle P2189: System Too Lean at Idle P2188: System Too Rich at Idle P2187: System Too Lean at Idle P2186: Engine Coolant Temperature Sensor 2 Circuit Intermittent/Erratic P2185: Engine Coolant Temperature Sensor 2 Circuit High P2184: Engine Coolant Temperature Sensor 2 Circuit Low P2183: Engine Coolant Temperature Sensor 2 Circuit Range/Performance P2196: O2 Sensor Signal Biased/Stuck Rich P2197: O2 Sensor Signal Biased/Stuck Lean P2198: O2 Sensor Signal Biased/Stuck Rich P2199: Intake Air Temperature Sensor 1/2 Correlation

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