How to Detect and Clean a Faulty Mass Airflow Sensor CarsDirect — Volkswagen Lupo I

26 Апр 2015 | Author: | Комментарии к записи How to Detect and Clean a Faulty Mass Airflow Sensor CarsDirect — Volkswagen Lupo I отключены
Volkswagen Lupo I

How to Detect and Clean a Faulty Airflow Sensor

A check light often comes on due to a airflow sensor (MAS). the symptoms of an MAS that needs and how to clean it.

A mass airflow (MAS) determines the mass of air a vehicle’s fuel injection and passes that data to the Control Unit, or ECU. The air information is necessary for the ECU to correctly and deliver the correct amount of to the engine. When a vehicle’s airflow sensor is faulty or it can cause a variety of problems, and results in very poor from your engine.

Symptoms of a Faulty Mass Air Sensor

A faulty mass sensor will cause similar to low compression or low vacuum, and also show symptoms to when your vehicle has low pressure from a faulty pump. Here are some of the common symptoms of a faulty airflow sensor:

The engine is very hard to or turn over

The engine shortly after starting

The hesitates or drags while load or idle

Hesitation and during acceleration

The engine

Excessively rich or lean

Volkswagen Lupo I


If you believe your car has a faulty air flow sensor, take it to a mechanic so that a complete diagnostic can be run. In most a faulty mass flow has a specific code that generate during computer and is usually easy to determine computer testing equipment.

How to Clean a Dirty Mass Sensor

Generally, you’ll to clean your mass sensor either every six or every time you change oil. Cleaning it when you or clean your air filter be a good way to save both and money.

Remove the Sensor

To your mass airflow first, you must take it This is done by opening vehicle’s air box and using a flathead to pluck it out. When the sensor, be sure to never the wires. A disconnected mass sensor can’t electrocute but the wires are delicate and small. one will require a replacement, can run upwards of $100, so it’s to be cautious.

Clean the Sensor

Next, you two choices. The cheapest option be to take your mass sensor and place it in a plastic bag with rubbing alcohol. the bag and move it around, making the alcohol washes all of the dirt and from the sensor. Another would be to go to your local parts store and buy a special airflow sensor cleaner, and it onto your sensor, but as before, this is more

Volkswagen Lupo I
Volkswagen Lupo I
Volkswagen Lupo I
Volkswagen Lupo I

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