Spectra Premium's complete line of new Mass Air Flow Sensors features C-MAFS Ceramic PC boards, to ensure premium performance and durability.

• Provides more consistent voltage to eliminate engine rough idle problems.
• Platinum connector threads reduce the number of connection points for faster reaction to change.
• Silica gel is applied to ceramic PC boards to protect the chip, providing superior resistance to extreme temperature fluctuations and vibration.

Check for Vacuum Leaks First!

Vacuum leaks present symptoms similar to a faulty MAF Sensor. When replacing the MAF, always check for vacuum leaks, too. Common sources include:

• Cracked or loose Vacuum Hoses / Connectors - an audio Stethoscope can help detect air induced sounds from vacuum leaks.
• Leaking Intake Manifold Gasket (found in the "Engine" category) - Vacuum Gauge readings below 17-22 in-Hg (normal manifold vacuum at sea level) at idle may indicate an intake manifold gasket leak.
• Note: As elevation increases, readings decrease. Subtract 1 in-Hg from normal manifold vacuum reference for every 1,000 feet increase in elevation above 2,000 feet.
• Stuck open PCV Valve - remove the PCV Valve and gently shake it; if it does not rattle, the valve is clogged or dirty and should be replaced.
• Cracked Intake Boot (found in the "Engine" category)

Videos

Additional Resources