What happens when mass airflow sensor goes bad?
A contaminated or failed mass air flow sensor cannot measure the amount of air flow correctly. This causes the engine computer to miscalculate the amount of injected fuel. As a result, a bad mass air flow sensor causes various driveability problems, including a no-start, stalling, lack of power and poor acceleration.
What do you need to know about mass air flow sensors?
Please provide some information about the part you are looking for. Mass Air Flow Sensors (a.k.a. MAF Sensors) are precision components that measure the amount of airflow entering the intake manifold and must communicate clearly with the Engine Control Module (ECM).
How does the air mass sensor work in a diesel engine?
The air mass sensor precisely measures the air mass that flows into the engine (“mass air flow”). The signal from the air mass sensor is used to calculate the injected fuel quantity. In diesel engines, it also controls the exhaust gas recirculation. It is an important component in air supply and helps reduce exhaust gas.
Can a bad mass air flow sensor trigger a check engine light?
Bad mass air flow sensor with no check engine light? Sometimes a mass airflow sensor can start to fail and even trigger engine error codes such as P0101 and P0102, without triggering a check engine light. There must be a problem with the mass airflow sensor circuit for the check engine light to illuminate.
What causes a MAF sensor to go bad?
The MAF sensor could get contaminated or damaged. Often this happens when an old or improperly installed air filter allows some unfiltered air into the engine or when oil from an oil-soaked air filter contaminates the air flow sensor.
Where can I buy a mass air flow sensor?
Put a stop to engine hiccups and stabilize your engine’s air-fuel mixture with a new mass air flow sensor (MAF) from AutoZone. We carry great brands like ACDelco, Bosch, Duralast, Hitachi, and more. Buy your new air sensor on AutoZone.com for free next day delivery or pick up your parts in an AutoZone auto parts store near you today.
Can a oiled filter damage a mass air flow sensor?
It’s not restricting flow as badly as you may think Touching the MAF’s sensing element: The oils and acids on your skin will contaminate the sensor Never cleaning your intake’s filter: This will eventually make the filter element break down, causing, oiled gauze, bugs and whatever else that’s caught into it to crash into the MAF’s sensing element
The air mass sensor precisely measures the air mass that flows into the engine (“mass air flow”). The signal from the air mass sensor is used to calculate the injected fuel quantity. In diesel engines, it also controls the exhaust gas recirculation. It is an important component in air supply and helps reduce exhaust gas.
What are the symptoms of a bad air flow sensor?
The symptoms of a bad mass air flow sensor include low engine power, poor fuel economy, an engine that won’t start, a check engine light on the dash and a gas smell from the exhaust fumes. A bad mass air flow sensor is often the likely culprit if your car isn’t running as it should.