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P0100 Fault in the mass air flow sensor wiring

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P0100 means: Fault in the mass air flow sensor wiring. The mass air flow (MAF) sensor measures how much air goes into the engine. Drive gently and have the car checked soon. The repair usually costs about €60–250 in Estonia. The most common cause: connector is loose or corroded.

Is it safe to drive?Get it checked soonDrive gently and have the car checked soon.
Typical repair cost€60–250parts and labour in Estonia

What it means

The mass air flow (MAF) sensor measures how much air goes into the engine. The engine computer isn't getting a proper signal from the sensor at all.

What could be wrong

  1. 1Connector is loose or corroded
  2. 2Wire is broken
  3. 3MAF sensor has failed

What you can check yourself

Check the connector next to the air filter box. Is it clipped on properly? You can do the simpler checks yourself.

How we fix it

  1. We measure the sensor supply and signal
  2. We repair the wire or connector
  3. We replace the MAF sensor

Standard SAE description: Mass or Volume Air Flow Circuit Malfunction

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.

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Questions

What does fault code P0100 mean?

Fault in the mass air flow sensor wiring. The mass air flow (MAF) sensor measures how much air goes into the engine. The engine computer isn't getting a proper signal from the sensor at all.

Can I drive with code P0100?

Drive gently and have the car checked soon.

How much does it cost to fix P0100?

Roughly €60–250 in Estonia. The price depends on exactly what has failed and on the car.

How is P0100 fixed?

We measure the sensor supply and signal. We repair the wire or connector. We replace the MAF sensor.

Related codes

P0102Mass air flow sensor signal too lowP0103Mass air flow sensor signal too highP0105Fault in the intake pressure (MAP) sensor wiringP0106Intake pressure (MAP) sensor reads wrongP0107Intake pressure (MAP) sensor signal too lowP0108Intake pressure (MAP) sensor signal too highP0110Fault in the intake air temperature sensor wiringP0112Intake air temperature sensor reads too warm

This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.

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