P2195 Code – Meaning, Causes, Symptoms (& How To Fix)

Car owners don't want to have trouble codes. P2195 is one code that may cause some confusion.

We will be discussing the P2195 code and its causes in this guide. The top symptoms and how to treat them are also discussed. 

Definition of Code P2195

P2195 – O2 Sensor Signal Stuck Lean- Bank 1 Sensor 1

What is the P2195 Code?

When the P2195 trouble code is set, it indicates the car’s oxygen sensor in bank 1 is not operating within a normal range. As a minimum, most vehicles have a maximum of 10 cycles per second. If the oxygen sensor isn’t operating to this standard, it’s considered to be running lean.

The sensor is also known as the air/fuel sensor, because it measures the fuel and air ratios from exhaust that comes from the engine. This information then goes to the catalytic convert. With this code, it’s likely that the engine is running lean. A problem could exist with the sensor. 

READ MORE: Bank 1 vs Bank 2 – Sensor 1 & 2 (Locate O2 Sensors Fast & Easy)

P2195 Trouble Code Symptoms

Check Engine Light, the most prominent symptom for the P2195 code, is it. However, it can also create some performance problems, which differ based on what’s causing the condition. 

These are the top P2195 symptoms.

The P2195 Code: Causes

The engine can be set to the P2195 code for a variety of reasons. Below are some common issues that you could face. 

What is the P2195 code?

Very severe – This trouble code might not seem like it’s going to cause problems, especially at first. Although the car will continue to work as expected, this can change quickly. 

The engine could suffer internal damage if the problem isn't addressed immediately. If you don’t get the engine fault fixed right away, other components could fail, including the expensive catalytic converter. 

How can you fix the P2195 code?

Once you go through all of the steps to diagnose the P2195 trouble code, you’ll have a better idea of what’s wrong with the system. It’s important that you don’t perform any repairs until you know exactly what the cause is. 

These are the top repairs.

• Rewire or repair the circuit connector of an oxygen sensor
• Replace oxygen sensor 1 (bank 1)
• Replace failing fuel injector
• Repair low fuel pressure
• Vacuum leak repair
• Contamination by clean mass airflow sensor
• Fix exhaust leak

Common mistakes in diagnosing P2195

It’s important that you properly diagnose the P2195 trouble code. If you don’t follow the appropriate steps, you could end up replacing parts that aren’t damaged or you could cause more trouble.

For example, it is important to double check the intake air. It’s a simple check and can be part of the problem. If damaged air intake isn’t replaced, air can enter without being metered by the mass airflow sensor, thereby causing more trouble. 

How to diagnose P2195 Trouble code

You must diagnose your system like a professional to solve the P2195 issue. You can follow the directions in your car’s service manual for exact parameters and to understand what your particular vehicle should be running at. 

Below are some guidelines.

1. Make sure to check the engine codes. You can reset codes if there is too much to identify and then run the car again until the codes come back. Use freeze frame data to determine what’s going on.
2. To determine if there are frayed cables or disruptions in the connection, inspect the oxygen sensor 1. To determine if your connection can be reestablished, you may try to clean the oxygen sensor. 
3. You should inspect the mass-airflow sensor. Look for similar problems such as frayed cable or poor connection. The problem could be fixed by cleaning the sensor.
4. You should inspect the filter. You should replace the filter if it becomes contaminated. 
5. Follow the instructions in the manual to check for exhaust or vacuum leaks.
6. You can also move the oxygen sensor that is defective to another bank to check if codes have changed. You can then determine if the sensor is defective. 

Beyond these steps, it’s best to take your vehicle to a professional technician for more support. These are the most common problems that can be fixed.

The estimated P2195 repair cost

The problem that caused the P2195 code trouble code will determine the cost of repair. You might face these typical repair costs after your diagnostic evaluation. These include both labor and part.

• Repair circuit connector or wiring of oxygen sensor – $35-$350
• Replace oxygen sensor 1 (bank 1) – $225-$600
• Replace failing fuel injector – $75-$650
• Repair low fuel pressure – $50-$750
• Repair vacuum leak – $200-$1,000
• Clean mass airflow sensor contamination – $75-$450
• Repair exhaust leak – $150-$500

Here are some mechanics tips about the P2195 code

A professional mechanic will know that there are other codes which can be used to help diagnose the problem. If you scan the engine and find other DTCs, it’s important to see what they are pointing to.

Sometimes it is a good idea to fix the trouble codes before you do. Sometimes, multiple problems can be resolved at once.