How To Replace Mass Air Flow Sensor + Replacement Cost

Mass Air Flow Sensor Replacement

A mass air flow sensor is a device that measures the mass flow rate of air entering a fuel-injected internal combustion engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct amount of fuel to the engine.

Your engine computer and oxygen sensor may suffer long-term damage if you drive with a faulty Mass Airflow sensor. Poor gas mileage and power are potential negative consequences if you choose to drive with a damaged Mass Airflow sensor.

If you’re having trouble with your car’s Mass Air Flow Sensor, then you’ve come to the right place. We’ll show you how to replace your sensor with our easy-to-follow instructions.

How To Replace Mass Air Flow Sensor

The following Steps Must Be Followed For Replacing The Mass Air Flow Sensor.

  1. Remove the negative battery terminal first.
  2. Now, unplug the mass air flow sensor’s electrical link.
  3. To release the air intake hose clip at the throttle body, use a flathead screwdriver. Lift out the air intake tube after releasing the clamps holding the air filter housing in place. The air filter needs to be changed right now.
  4. Examine the Mass Airflow sensor. It might only require a thorough cleaning if it is unclean rather than a replacement. Only clean the sensor using Mass Airflow sensor cleaner, give it ten minutes to dry, then reassemble it, and check to see whether your problems are solved. If not, proceed to the following action.
  5. The fasteners holding the Mass Airflow sensor to the intake tube can be removed using a ratchet and socket.
  6. Remove the Mass Airflow sensor’s housing by sliding it.
  7. Slide the second sensor into the air tube after carefully removing it from the manufacturer’s box. The temperature sensor wire should not be touched because it is a delicate and easily broken component. An inaccurate reading can be caused by a bent-temperature wire.
  8. Apply the torque in accordance with manufacturer specifications. This is hardly much—usually just 15-to-20-foot pounds.
  9. Replace the Intake tube. Reconnect the Mass Airflow sensor’s electrical plug. The hose clamp should be tightened with a screwdriver.
  10. Reconnect the battery’s negative terminal.
  11. Start the engine and keep an eye out for the Check Engine light or any other sensor-related warning signs.

In conclusion, it is important to know how to replace your mass air flow sensor, as this can help keep your car running smoothly. Follow the steps outlined in this article, and be sure to have the right tools and replacement parts on hand. With a little time and effort, you can do this job yourself and save money.

Mass Air Flow Sensor Replacement Cost

If your car needs a new mass air flow sensor, you may be wondering how much it will cost. Most mass air flow sensors cost between $100 and $150, although some go up to $400, especially in more expensive German ones. You should prepare for a greater labor cost, perhaps in the $100 area, for some vehicles. If you’re considering a do-it-yourself job, know that it’s not particularly difficult – just a little time-consuming. The most important thing is to make sure you get the right sensor for your car.


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