Skip the auto shop - Our mechanics make house calls

How Are Sensors Used to Improve a Car’s Performance?

Throttle sennsor

The feeling of driving down the interstate or a desolate country road with your foot on the pedal as you feel the smooth way your car handles is incomparable. There’s just nothing quite like a car with exceptional performance. Several sensors play key roles in getting the best performance possible for your vehicle.

The oxygen sensor

Also called the O2 sensor, the oxygen sensor is an important part of how your vehicle handles emissions. It lets your diagnostic computer know how much unburned fuel is still present in the exhaust. If the mixture of air and fuel is correct, very little will be measured. This sensor monitors if your fuel is rich, lean, or just average, which is right where it should be. Based on information from the O2 sensor, the PCM alters the amount of fuel put into the mixture.

The MAP sensor

The manifold absolute pressure (MAP) sensor monitors the intake volume to change the frequency or voltage if the pressure in the manifold changes. When the sensor doesn’t work, reduced performance is the result.

Throttle position sensor

The job of this sensor is to tell the throttle when to open and close to provide the right fuel mixture when you’re accelerating. The information from the throttle position sensor goes to the PCM so it can increase or decrease fuel and speed up or slow down ignition timing.

The MAF sensor

Another sensor with an important job for your vehicle’s performance is the mass airflow (MAF) sensor. It measures the amount of air coming into the engine. This is another component to ensuring the proper fuel mixture. When the MAF sensor doesn’t work correctly, the engine will have a rough idle, it may hesitate or stall out, or it may have a hard start.

Many components impact the performance of an engine, but these sensors play integral roles in the operation. So, the next time you put the pedal to the metal, you’ll understand what gives you that thrilling ride.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P0121 OBD-II Trouble Code: TPS "A" Circuit Range Performance Problem
P0121 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem What the P0121 code means P0121 is a generic OBD-II code which indicates that the Engine Control...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...


Related questions

Q: A6G A6GC plug replacement

Hello there, thank you for asking about your 1986 BMW 635CSi. According to the spark plug cross reference website, the A6GC is a direct replacement for the A6G. You should have no problems using that plug. If you want to...

Q: 2010 Ford Fusion SE with I4 Engine - Throttle Position (TP) and Accelerator Pedal Position (APP) sensors

Since the code reads Throttle Body, the sensor on the throttle body under the hood may be the best place to start. The throttle position sensor measures the angle of the throttle plate and tries to match the effort shown...

Q: Heavy gas smell inside car.

It sounds like you have a fuel leak and should not operate your car for safety reasons until you have the issue checked out. This may be the cause of the stalling and starting problems.