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MTI Racing

MTI Racing Performance Parts and Accessories for Late Model Muscle Cars, Trucks and SUVs

 

Headquartered in Dawsonville, Ga. and founded in 1993, MTI Racing has a tremendous personal commitment to building the very best quality performance products. Each member of the MTI staff contributes with backgrounds in engineering, fabrication, professional racing, and expert troubleshooting.  Led by former World Challenge racer Reese Cox, MTI Racing has grown rapidly by leveraging his advancing race technology. Reese's involvement in the Corvette Challenge Series paved the way to becoming team manager for Tommy Morrison Racing, preparing the team's ZR-1 Corvettes for the 24 HRS Of Daytona. While acting as crew chief and engineer in the IMSA Invitational GT Series, Reese and crew clinched a SCCA GT-1 National Championship with GM engineer/pro driver John Heinricy. Reese's attention to detail soon opened doors to work with a number of notable pro road racing teams and pro drivers such as Johnny Rutherford, Tommy Kendall, Andy Pilgrim, and Boris Said. Nowhere else in the “tuner” market are you going to find this level of experience, both on the track, and off, as you will find with MTI Racing. This experience translates to building high-end performance parts and accessories for most late model muscle cars, trucks and SUVs. Accesspeed is proud to offer MTI Racing products to our customers. With our lowest price match guarantee, you will always find the best combination of price and selection at Accesspeed.

 


Air Intake and Induction » Mass Air Flow Sensors

What is a Mass Air Flow Sensor or MAF?

The mass air flow (MAF) sensor is part of your vehicle's electronic fuel injection system. The MAF sensor calculates the total amount of air entering the engine through the intake tract, and tells the computer how much fuel to inject for air coming through the intake. 

 

 

How does a mass air flow sensor work?

The mass air flow (MAF) sensor has two sensing wires in the housing that protrudes into the intake tube prior to the throttle body.  One wire is heated by electrical current, the other is not heated at all.  As air flows across the heated wire, it cools the wire down. When the temperature difference between the two sensing wires changes, the MAF sensor automatically increases or decreases the current to the heated wire to compensate, telling the computer how much fuel to send through the fuel injectors.

 

How much horsepower and mpg increase can I expect from an aftermarket mass air flow sensor?

Aftermarket performance mass air flow (MAF) sensors replace your OEM sensor and improve on mileage and can increase horsepower by up to 20-HP, depending on the vehicle and engine. Performance MAF sensors increase airflow and low-end torque, without robbing top-end power, and works with factory electronics.

 

What are the symptoms of a bad mass air flow (MAF) sensor?

  • The engine hesitates or drags while under load or idling.
  • During acceleration, you experience hesitation and jerking.
  • The engine coughs, sputters, or hiccups.
  • Excessively rich idling or lean idling.
  • The engine is difficult to start or crank over.
  • The engine stalls or dies shortly after starting.

 

Can you drive with a bad mass air flow sensor?

Yes and no. Yes, you can drive your vehicle with a bad mass air flow (MAF) sensor, but only to get it home or to a repair shop to fix or replace it. Ignoring this problem can lead to far more severe engine problems and damage.

 

Why would a car run better with the mass air flow sensor unplugged?

If your vehicle runs better with your MAF sensor unplugged, you likely have a shorted-out sensor. When the computer does not read a signal from your mass air flow sensor, it provides the computer with a stock signal that will allow you to drive your vehicle for a short period of time to get it fixed or replaced.