A Temporary Fix For A Bad O2 Sensor; Must Read.

Here is a temporary fix for a bad O2 sensor:

  • Unplug the O2 sensor to tell the car’s computer to ignore it and use a default fuel mixture.
  • Use a dummy O2 sensor to simulate the output of a good O2 sensor and prevent the check engine light from coming on.

It is important to note that both of these methods are only temporary fixes. The O2 sensor will eventually need to be replaced.

Your car might idle rough or run erratically if the oxygen sensor is malfunctioning. A damaged oxygen sensor can affect your engine’s timing, combustion intervals, and other crucial operations. Additionally, you might observe stalling or a slow acceleration.

So when this happens you may need a temporary fix for your O2 sensor until you get it replaced and get the problem solved permanently. In this article, you will find out the answers to what you’ve been looking for, and welcome to Sensor Guides. 

A Temporary Fix For A Bad O2 Sensor; Fixed in 02 Min

Here are two methods to temporarily fix a bad O2 sensor:

Method 01 – Unplugging the O2 sensor

This is the simplest and most straightforward method. To do this, you will need to locate the O2 sensor on your car. It is usually located near the exhaust manifold. Once you have located the sensor, disconnect the electrical connector. This will tell the car’s computer to ignore the sensor and use a default fuel mixture.

Unplugging the O2 sensor will cause the car to run less efficiently. You may notice a decrease in fuel economy and an increase in emissions. However, it will allow you to drive the car until you can get the sensor replaced.

Method 02 – Using a dummy O2 sensor

A dummy O2 sensor is a device that simulates the output of a good O2 sensor. This will allow the car’s computer to think that the sensor is working properly and will prevent the check engine light from coming on.

See also  How to Replace The O2 Sensor On Toyota Avalon; Step By Step Guide

To use a dummy O2 sensor, you must purchase one compatible with your car. Once you have purchased the sensor, you must install it in place of the old one. This may require some basic mechanical skills.

Using a dummy O2 sensor is a more effective way to temporarily fix a bad O2 sensor than unplugging the sensor. However, it is also more expensive.

It is important to note that both of these methods are only temporary fixes. The O2 sensor will eventually need to be replaced. If you continue to drive with a bad O2 sensor, it can damage your car’s engine and other components.

Here are some additional things to keep in mind when temporarily fixing a bad O2 sensor:

  • Make sure that you disconnect the battery before you unplug the O2 sensor. This will help to prevent any electrical damage.
  • When you are using a dummy O2 sensor, make sure that it is installed correctly. If it is not installed properly, it may not work properly and could damage your car’s engine.

How to make a dummy O2 sensor?


It is not possible to make a dummy O2 sensor at home. A dummy O2 sensor is a device that simulates the output of a good O2 sensor. This requires precise electronic circuitry and calibration. It is not something that can be easily DIY-ed.

Here are some of the reasons why you should not make a dummy O2 sensor at home:

  • It is not safe. If you do not have the proper knowledge and skills, you could damage your car’s computer or other components.
  • It is not effective. A homemade dummy O2 sensor may not work properly and could damage your car’s engine.
  • It is illegal. In some states, it is illegal to drive with a bad O2 sensor.

How to identify a bad O2 sensor? (bad O2 sensor symptoms)

There are a few symptoms coming out when the oxygen sensor goes bad. So the following are some of these symptoms, and you must be kept alerted when your vehicle shows one or more of these symptoms. 

  • Exhaust black smoke.
  • High levels of emission are present.
  • Turns on the check engine light.
  • Your engine stutters, skips, starts to buck, or experiences power surges.
  • ‘Rotten Egg’ or sulfur odour coming from the exhaust.
  • Significant Fuel Efficiency Loss
See also  What to know about 1990 Acura Integra O2 Sensor?

If you observe these symptoms for a day or two, I highly recommend you get your O2 sensor inspected by a good mechanic. 

Can you fix the O2 sensor temporarily?

A Temporary Fix For A Bad O2 Sensor; Must Read.

This is a stranger question because the sensors are very complex technical items, and the available temporary fixes are rear, so the O2 sensor too. 

But still, there is one option you’ve got. (but not advised to do).

If you’ve got no other option, you can replace the original O2 sensor with a fake one which is not working and not doing the job. As the O2 sensor is really important for fuel combustion and fuel efficiency, it is not advised to do it. 

The following are the steps of a temporary fix for a bad O2 sensor. 

  1. Get down to your undercarriage.
  2. Under the car, there are O2 sensors that you can plug out.
  3. Using a tool for disassembling O2 sensors, loosen your sensor in a counterclockwise direction.
  4. Install the fake O2 sensor and join it to the power socket of your sensor.
Temporary fixes for a bad O2 (oxygen) sensor

Where can i get a dummy o2 sensor?

A dummy sensor is a fake O2 sensor that takes readings just like a real one. A fake one transmits the correct data to the car’s computer that a real one would transmit if it were reading properly. The use of dummy O2 sensors is simple. All you have to do is find the current O2 sensor in your car and unplug it.

Can you clean an O2 sensor?

Contrary to what you may have heard or read, such sensors should be changed when they malfunction.

How to trick an o2 sensor?

The best way to trick an O2 sensor is to connect a resistor with the Oxygen sensor, and here is hwo to do it on your own.

The primary alternative is to attach a resistor to the existing O2 sensor. When the sensor is functioning properly, the resister will send one signal to the computer. 

Because you already have a functional sensor that you know is compatible with your vehicle, directly attaching a resistor to your current O2 sensor is a better approach. This implies that you are not required to locate a compatible sensor.

Similar to how you removed the O2 sensor from the car using the first method, you attach the resistor in the same manner. Push the device back in after attaching the resistor to the connectors with solder.

See also  Troubleshooting Misfires After Replacing O2 Sensors: A Comprehensive Guide
Temporary Fix For Bad O2 Sensor in only 3 Steps!

What number of oxygen sensors does my car have?

Here is a quick tip to help you figure out how many your car has. This will vary from car to car.

Your vehicle will have one catalytic converter for each exhaust pipe (a part that turns harmful gasses into less harmful gasses). You will have two oxygen sensors for every catalytic converter. One catalytic converter and two oxygen sensors are standard in many vehicles, but some may have four or more.

The upstream and downstream sensors are, therefore at least two of the O2 sensors that are installed in your car. They both function essentially in the same way: at various locations in the exhaust system, they detect the quantity of unburned oxygen, and they emit a voltage that is corresponding to that quantity.

Do I have to swap out all of the O2 sensors at once?

No, but it is strongly advised. Why? To save money, time, and hassle, the technicians at Global Automotive advise replacing all of your sensors at once.

Usually, if you only replace the one that has failed, you will return to our shop to replace the other within three months. Time must be spent on it, and labour costs must also be added.

How much does it cost to replace the O2 sensors?

The price of the oxygen sensor may range from $20 to $100, depending on your car. The labor price varies depending on the make and model of your car and the mechanic you choose. The labor costs of a mechanic range from $50 to $150 per hour. They typically don’t take longer than 30 minutes and charge less.

Can I drive my car if the O2 sensor needs to be replaced?

If your engine can still start and you have only minor difficulty driving, you can drive with a bad oxygen sensor. However, don’t leave it unattended for more than a few days as this could compromise vehicle safety and cause other components to break down.

Where to buy O2 sensors?

There are many online as well as physical stores to buy O2 sensors; spending on your location, I can recommend buying it from a reputed online store like Amazon or e-Bay. There is so many trusted sellers who has many good reviews. 

FIX O2 Sensor For FREE! Never Replace a Bad Sensor Again!

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *