P0100 – Mass Air Flow (MAF) Circuit Malfunction: Symptoms, Causes & Fix

DTC P0100 means your car’s Mass Air Flow (MAF) sensor circuit has a malfunction, affecting engine performance and fuel economy.

❓ What is Code P0100?

P0100 – Mass or Volume Air Flow Circuit Malfunction
The MAF sensor measures the amount of air entering the engine. A fault in its circuit disrupts fuel calculations, leading to poor performance.

⚠️ Symptoms of P0100

• 🚨 Check engine light ON

• ⛽ Poor fuel economy

• 🚗 Rough idling or stalling

• 🐢 Reduced acceleration or power

• ⚠️ Black smoke from exhaust (in severe cases)

🔍 Common Causes

1. 🌬️ Faulty MAF sensor

2. 🔌 Damaged wiring or connectors to the MAF

3. 🧠 Faulty ECU or incorrect sensor signal

4. 💨 Dirty or clogged air filter affecting air flow

5. 💡 Air intake leaks after the MAF sensor

🛠️ How to Fix P0100

✅ 1. Inspect MAF Sensor & Wiring

Look for damaged, loose, or corroded connections.
👉 Shop MAF Sensors & Air Intake Parts →

✅ 2. Clean or Replace Air Filter

A clogged air filter can impact sensor readings.
👉 Buy Air Filters →

✅ 3. Check for Air Intake Leaks

Cracked hoses or loose clamps cause incorrect readings.

✅ 4. Replace Faulty MAF Sensor if Required

Only use quality-tested parts to avoid repeat issues.
👉 Engine Components & Sensors →

🛒 Relevant Parts at nayapurnaonline.com

• ⚙️ Engine Components & Assemblies

• 🌬️ Air Filters & Intake Parts

• 🚗 Tata MAF Sensors & Air Intake Spares

• 🚘 Hyundai Air Sensors & Filters

• 🚙 Honda Engine Air Sensors & Spares

🚗 Commonly Affected Vehicles

💡 Quick Tips

• Never spray oil-based cleaners near the MAF sensor

• Use only recommended air filters for your car

• Clear the code after fixing — monitor if it returns

✅ Final Words

A P0100 code disrupts your engine's air-fuel ratio. Restore performance with quality-tested MAF sensors, air filters, and intake parts from nayapurnaonline.com.