DIY Intake MAF Mount
A mass air flow -- MAF -- sensor is an electronic sensor that gauges the volume of air flowing from the throttle body into the intake manifold. The sensor adjusts a valve inside the sensor housing to control that volume. If the mass air flow sensor fails, the fuel injection system will not function properly. Symptoms of a failing mass air flow sensor include hoggish acceleration and a decline in rpm even though a driver keeps his foot placed steadily on the gas pedal. Replacing the MAF takes less than 10 minutes.
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Instructions
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Remove the intake hose from the manifold. Unthread the screw on the hose clamp and slip the hose off the manifold housing by pulling it off the housing intake tube. Remove the other end of the hose from the mass air flow sensor, again, by loosening the hose clamp and pulling. The MAF is also connected to the throttle body with a hose clamp. Pull the sensor wire from the connection housing with your fingers, then remove the MAF from the throttle body.
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Slide the new MAF onto the throttle body. Tighten the mouth of the MAF around the body tube of the housing with a hose clamp, then slide the intake hose onto the other end of the MAF and tighten it in place with a clamp. Slide the other end of the hose over the manifold housing and secure it with a hose clamp. Slide the sensor wire plug into the sensor housing.
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Turn on the engine. Place your hand over each of the hose clamps and feel for a vacuum leak. Also listen for a sucking blowing sound from the MAF. If either are present, further tighten the hose clamps.
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Tips & Warnings
If you have additional questions or need further assistance, contact a qualified mechanic.
References
- Photo Credit Noel Hendrickson/Digital Vision/Getty Images
