MAF sensors are used on all cars to detect any leak in your exhaust system. A single leak will cause the MAF sensor to trigger and set off a light that pokes up from your dashboard.
Generally speaking, bypassing is not desirable because it wastes money unnecessarily while at the same time it could lead to severe damage if left unchecked.
How To Trick A Mass Air Flow Sensor? Yes, there are ways to trick the mass airflow sensor. If you want to trick a mass airflow sensor, you’ll need a unique tube. This tube has the same shape as the airflow sensor and is made of metal, not plastic.
By placing it in front of an ignition source, it will heat up and give the same reading as the fuel-air mixture coming from your car’s tailpipe.
The gas used does not matter; how hot it is and how much fuel-air mixture it can produce. However, air mass flow sensors are extremely sensitive to heat.
As such, a tiny amount of heat from an open flame can trick the sensor into reading higher than it should, which is detrimental to your engine if this happens.
Table of Contents
- What Is Mass Air Flow Sensor? Why Is It Necessary In The Car?
- What Happens If You Have A Bad Mass Air Flow Sensor?
- Disadvantages Of Having a Bad MAF Sensor?
- When Should You Bypass MAF Sensor?
What Is Mass Air Flow Sensor? Why Is It Necessary In The Car?
Using a mass airflow (MAF) sensor properly is necessary to prevent a knock in your engine. Knock results from having too much fuel and not enough air in the combustion chamber, which causes uncontrolled explosions within the cylinder.
This can damage your pistons and valves and eventually lead to serious problems with your car’s performance. MAF is a standard sensor found in many cars and trucks.
It measures the amount of air as it passes through your engine, which lets the car or truck know how much fuel to deliver.
If the MAF doesn’t function properly, your engine will not run correctly. For example, if it thinks you’re getting more air when you’re not, it will try to deliver more fuel than needed.
This can cause a knock on your engine. Since a mass airflow sensor is essentially just a tube that measures the amount of air entering your engine, you can trick it into thinking more air is coming in than it is. This can allow your engine to run with a higher octane than its actual rating.
By tricking the MAF sensor into thinking that you are using more air, you will prevent or alleviate possible knocks in your engine. For example, if your car requires 87 octanes to prevent knock, and you’re using less than 87 octanes, you will be susceptible to knock.
This method of tricking the MAF sensor takes advantage of its relatively high sensitivity towards heat.
What Happens If You Have A Bad Mass Air Flow Sensor?
The Mass Air Flow Sensor is an essential part of your car’s engine. It measures the amount of air coming into the engine and sends a reading to your car’s computer, which then adjusts the engine accordingly for optimal performance.
Why is this important? Because you want the engine to perform at its best in order to burn fuel and operate with lower emissions efficiently.
The airflow sensor can fail in several ways. But one of the most common failures of this part is that it becomes contaminated, which causes it to fail.
When this happens, you will get a code indicating a mass airflow sensor failure has occurred. It’s essential to replace a faulty mass airflow sensor as soon as possible because this will optimize your engine’s performance.
The car will throw a code on the dash and illuminate the check engine light when this happens. This means you need to take your vehicle to your mechanic for diagnosis and repair.
Your mechanic will test the system and determine how bad the mass airflow sensor failure is. You might not notice a decline in performance but can detect a decline in fuel economy.
So after things are considered, replacing this part is much cheaper and better for your vehicle.
In addition, you’re not likely to run into problems with re-installing or repairing this part, so you can leave this step to professionals who have the necessary knowledge and skill.
Disadvantages Of Having a Bad MAF Sensor?
Today, you will learn about the three disadvantages of having a bad mass air sensor in your car. Mass airflow sensors, also called MAF, can go wrong in different ways, and each defect has its drawbacks.
- First, an oxidized sensor will read lower than it should. This could mean that you have a lot more power coming from the engine than is being measured by your instrument cluster. The result is faster wear-and-tear of your engine components due to over-use.
- Second, a defective mass air sensor will cause the engine to run lean. This means that there’s not enough fuel being injected for proper combustion. This results in poor combustion and more carbon monoxide, which is highly toxic in the exhaust.
- Third, a faulty mass airflow sensor will cause the car to run rich. This means that you are burning too much fuel for proper combustion, and some of it is escaping from the exhaust unburned. This results in wasted fuel decreased engine performance, and increased harmful emissions.
When Should You Bypass MAF Sensor?
Every car contains a mass airflow sensor to measure the amount of air coming into the engine for optimum fuel efficiency and power.
Sometimes, if the car is not used much or if plugged-in chargers aren’t working correctly, it can freeze and won’t let any air through.
This leads to a faulty reading and an inaccurate display of miles per gallon, which will cause higher costs for fuel and worse engine performance. The one way to fix this problem is by using a trick around since the 90s.
You should take your car to the mechanic for further diagnosis, and he will let you know whether it will be repaired or replaced. They will also tell you about the prices and cost of replacing the sensor.