How do I fix code p0104?

How do I fix code p0104?

1. STEP 1: CHECK AIR FILTER. Check your air filter and replace if needed.
2. STEP 2: CHECK MAF SENSOR WIRING HARNESS. Visually inspect wiring around Mass Air Flow (MAF) Sensor for any frayed, broken, corroded wires.
3. STEP 3: CHECK FOR VACUUM LEAKS.
4. STEP 4: CLEAN MAF SENSOR.
5. STEP 5: TEST MAF SENSOR.

What causes a p0104 code?

What causes the P0104 code? The MAF Sensor having erratically high voltage output problems may have several causes: The source of the problem is the sensor voltage is not sending correct voltage output required by the ECU. The most basic problem is too inconsistent high air flow from the air cleaner the MAF sensor.

What does mass air flow sensor circuit a mean?

Updated July 10, 2021. The mass airflow sensor (MAF) measures the amount of air entering the engine. The OBD-II code P0101 is set when the signal from the mass air flow sensor is out of expected range, or in other words, the MAF sensor doesn’t work properly. In most cases, this code is not very difficult to diagnose.

What does mass air flow circuit mean?

The mass airflow (MAF) sensor is a device that is mounted on the air intake. Its job is to measure the density and, therefore, the volume of filtered air that is drawn into the engine. When the PCM perceives the sensor or its circuit is malfunctioning, OBD-II code P0101 is triggered.

How do you know when your mass airflow sensor is bad?

Seven Signs Your Mass Airflow Sensor Is Dirty Or Going Bad

1. Black Exhaust. One sign that your vehicle’s MAF is going bad is black exhaust from excess fuel.
2. Check Engine. A faulty mass airflow sensor is a common reason why a check engine light comes on.
3. Hard Starts.
4. Hesitation.
5. Poor Gas Economy.
6. Rough Idle.
7. Trouble Accelerating.

What are signs of a bad mass air flow sensor?

3 Signs of a Bad Mass Air Flow Sensor

• Stalling, jerking, or hesitation during acceleration.
• air fuel ratio is too rich.
• air fuel ratio is too lean.

What are the symptoms of a dirty MAF sensor?

Seven Signs Your Mass Airflow Sensor Is Dirty Or Going Bad

• Black Exhaust. One sign that your vehicle’s MAF is going bad is black exhaust from excess fuel.
• Check Engine. A faulty mass airflow sensor is a common reason why a check engine light comes on.
• Hard Starts.
• Hesitation.
• Poor Gas Economy.
• Rough Idle.
• Trouble Accelerating.