Keep your engine's fuel calculations accurate with the Standard Ignition Mass Air Flow Sensor (MAS0277). It installs as a direct-fit replacement for the listed applications: the 2006-2007 Cadillac CTS, 2002-2004 Chevrolet Corvette, and 2003-2006 Chevrolet SSR.
A mass air flow sensor measures the amount of air entering the intake so the powertrain control module can meter the matching amount of fuel. When the sensor's signal drifts or drops out, the computer can no longer read incoming airflow correctly, which can push the engine toward a lean or rich condition.
- Measures intake airflow: reports incoming air to the engine control module so fuel delivery can be calculated.
- Helps maintain the air-fuel ratio: designed to restore proper airflow readings for normal engine operation.
- Direct-fit replacement: intended to install in place of the original sensor on the listed applications.
Signs this part may need replacing: rough idle, hesitation or stumbling under acceleration, hard starting, reduced fuel economy, or an illuminated check engine light. These symptoms can have other causes, so diagnose the fault before replacing. If a failed mass air flow sensor is the cause, this unit replaces it.
Manufacturer part number MAS0277.
Frequently Asked Questions
What does this mass air flow sensor do?
It measures the volume of air entering the intake and reports it to the powertrain control module, which uses that reading to meter the correct amount of fuel for the engine.
What vehicles does MAS0277 fit?
It is a direct-fit replacement for the 2006-2007 Cadillac CTS, 2002-2004 Chevrolet Corvette, and 2003-2006 Chevrolet SSR. Check the Buyer's Guide tab to confirm fitment for your vehicle.
What are the signs a MAF sensor may need replacing?
Common signs include rough idle, hesitation under acceleration, hard starting, reduced fuel economy, or a check engine light. These can have other causes, so diagnose the fault first.
Will this fix my rough idle or check engine light?
If a failed mass air flow sensor is the cause of the symptom, replacing it with this unit addresses it. Because these symptoms can have other causes, diagnose the fault before replacing parts.
Is this a direct-fit sensor?
Yes. It is designed to install in place of the original sensor on the listed applications. Confirm your vehicle against the Buyer's Guide tab before ordering.
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