Keep the right amount of fuel matched to the air your engine breathes with the Standard Ignition Mass Air Flow Sensor MAS0170. It installs as a direct-fit replacement for the listed application — the 2000-2005 Volkswagen Passat — measuring the air entering the engine so the powertrain control module can meter fuel accordingly.
- Core job: Measures the mass of intake air so the PCM can calculate and deliver the correct amount of fuel.
- Direct-fit replacement: Designed to replace a worn or failed original mass air flow sensor on the listed application.
- Signs it may need replacing: Rough idle, hesitation, stalling, poor fuel economy, or an illuminated check engine light can point to a faulty MAF sensor — diagnose the cause before replacing.
If a failed mass air flow sensor is the source of these symptoms, this unit replaces it. A MAF sensor reports airflow to the PCM, which uses that reading to trim the air-fuel ratio; a contaminated or failing sensor sends inaccurate data and can lean out or richen the mixture. Because the same symptoms can have other causes, confirm the diagnosis before installing.
Manufacturer part number MAS0170.
Frequently Asked Questions
What does this mass air flow sensor do?
It measures the mass of air entering the engine so the PCM can calculate and deliver the correct amount of fuel for that airflow.
Which vehicle does the MAS0170 fit?
It is a direct-fit replacement for the 2000-2005 Volkswagen Passat. Confirm fitment for your specific vehicle before ordering.
What are the signs of a failing MAF sensor?
Rough idle, hesitation, stalling, poor fuel economy, or a check engine light may indicate a faulty MAF sensor. Diagnose the cause before replacing.
Will replacing this sensor fix my rough idle?
If a failed mass air flow sensor is the cause, this replaces it. The same symptoms can have other causes, so confirm the diagnosis first.
What is the manufacturer part number?
The Standard Ignition manufacturer part number is MAS0170.
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