🔧 Mass Air Flow Sensor - Replacement

The MAF sensor measures incoming air so the engine computer can set fuel delivery correctly. If it is faulty, you may see rough idle, poor acceleration, or a check engine light. This job is usually quick and straightforward.

Difficulty Level: Beginner | Estimated Time: 0.5-1 hour

---

⚠️ Safety & Precautions

• Turn the ignition off and remove the key before starting.
• Let the engine cool if the intake tube or air box is warm.
• Disconnect the negative battery cable if you want to avoid setting a code during the repair.
• Do not touch the sensing wire or element on the new sensor.
• Keep dirt out of the intake tube and air box.

---

🔧 Required Tools

You'll need the following tools for this repair:

• Flat-blade screwdriver
• 7mm socket
• Ratchet
• Torque wrench
• Trim tool
• Safety glasses
• Gloves

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Mass air flow sensor - Qty: 1
• MAF sensor seal or O-ring - Qty: 1

---

📋 Before You Begin

• Park on level ground and set the parking brake.
• Turn the ignition off.
• If disconnecting the battery, remove the negative cable first.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Access the air intake tube

• Open the hood and locate the air filter box and intake tube near the engine.
• Use a 7mm socket or flat-blade screwdriver to loosen the intake clamp if needed.
• Do not force brittle plastic.

Step 2: Unplug the MAF sensor

• Press the connector lock tab and unplug the electrical connector from the sensor.
• If the connector is tight, use a trim tool gently to help release the lock.

Step 3: Remove the sensor

• Use a 7mm socket to remove the MAF sensor screws.
• Lift the sensor straight out of the housing.
• Remove the old MAF sensor seal or O-ring if equipped.

Step 4: Install the new sensor

• Install the new MAF sensor seal or O-ring if included.
• Set the new sensor in place the same way the old one came out.
• Use a 7mm socket to install the screws snugly.
• Torque to 2.5-3 Nm (22-27 in-lbs).

Step 5: Reconnect and reassemble

• Plug the electrical connector back in until it clicks.
• Reinstall and tighten the intake clamp with a 7mm socket or flat-blade screwdriver.
• Make sure all hoses and air duct connections are seated fully.

---

✅ After Repair

• Start the engine and let it idle for a minute.
• Check for a smooth idle and no air leaks.
• If the check engine light was on, clear the code with a scan tool.
• Take a short road test and watch for hesitation or stalling.

---

💰 DIY vs Shop Cost

Shop Cost: $180-$350 (parts + labor)

DIY Cost: $60-$180 (parts only)

You Save: $120-$170 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1 hours.

---

🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.