Replace Acura Mass Airflow Sensor: MAF

Does your Acura have difficulties starting or stalls shortly after being started? Check engine light staying on? These are common symptoms of having a faulty Mass Airflow Sensor. Learn how to fix it by following the procedures below to replace the Acura Mass Airflow Sensor.

How to Replace Acura Mass Airflow Sensor

Replacing the Mass Air Flow (MAF) sensor on an Acura takes only 15 minutes. If your check engine light is on because of a faulty MAF sensor, your car does not respond to the gas pedal, or you struggle to accelerate, the MAF sensor may be the culprit.

Symptoms

Typical symptoms of a bad Acura mass airflow sensor include the check engine light coming on, poor engine performance, decreased fuel economy, and poor throttle response.

• The car is hard to start or has trouble turning over
• The engine stalls soon after starting.
• The engine runs unusually lean or rich at idle.
• Engine drags or hesitates when at idle or under load.
• The engine hesitates or jerks during acceleration.
• Check engine light is on or flashing.

The mass airflow sensor is straightforward to replace and is held in place with two screws.

Does Your Acura Have a MAF Sensor?

Not every Acura uses one. Many older models, such as the Integra, RSX and early TL, measure airflow with a MAP sensor instead, so check that your engine has a sensor in the intake tube before buying a MAF. Read the codes first: MAF faults usually set P0100 to P0104. A scan tool such as the YOUCANIC UCAN-II Pro reads these codes and shows live airflow readings on supported models, so you can confirm the sensor is at fault.

What you will need

• Acura MAF Sensor
  • Choose the correct sensor for your Acura model.
• Phillips screwdriver

Procedure

1. Locate the mass airflow sensor on the air intake tube next to the air filter housing.
2. Unplug the electrical connector from the sensor.
3. Remove the two Phillips screws and pull the MAF sensor straight out of the housing.
4. Install the new sensor in the same orientation, tighten the screws until snug, and plug in the connector until it clicks.
5. Clear the codes and start the engine. Let it idle a few minutes before driving.

Remove the screws that hold the mass airflow sensor in place.

Install the new MAF on your Acura. Tighten the screws so that they are snug. Plug the electrical connector until it locks in place.

This guide will help you replace the MAF sensor on an Acura :

• MDX
• NSX
• RDX
• RL RLX
• RSX
• SLX
• TL TLX
• ZDX
• CDX
• CL
• EL
• ILX
• Integra
• Legend

How much does it cost to replace the Acura MAF sensor?

Changing the mass airflow sensor at the dealer or auto repair shop costs between $150 and $350, while changing the Acura MAF sensor costs between $20 and $60.

Check Engine Light Still On

If the check engine light is still on after you replace the Mass Airflow Sensor, you can use the YOUCANIC UCAN-II Pro to clear the stored codes. This scanner can also read and clear fault codes on every control module of your Acura vehicle, if the vehicle is supported.

Frequently Asked Questions

What are the symptoms of a bad MAF sensor on an Acura?

Hard starting, stalling after start, hesitation, poor fuel economy and a check engine light are common.

Where is the MAF sensor on an Acura?

It sits in the air intake tube right after the air filter housing, held by two Phillips screws.

Do all Acura models have a MAF sensor?

No. Many older models such as the Integra and RSX use a MAP sensor instead.

Can I clean an Acura MAF sensor?

Yes. Spray it with MAF sensor cleaner without touching the element and let it dry completely before reinstalling.

Check these troubleshooting and repair guides for more help on your Acura vehicle.

---

Related Products

---