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Standard - Just The Facts
Just The Facts
Accelerator Pedal Sensors
Air Charge and Manifold Temperature Sensors
Airbag Clock Springs
Anti Lock (ABS) Sensors
Anti Lock Brake (ABS) Sensors Testing
Barometric Pressure (BARO) Sensors
Brake Pad Wear Sensors
Camshaft and Crankshaft Position Sensors
Camshaft Synchronizer Assemblies
Coolant Temperature Sensors
COP Boot and Pigtail Socket Assortments
Daytime Running Light Kits
DIS Control Modules
Don't Get PO'ed with PO401 Codes
EGR Position and EGR Pressure Sensors
EGR Valves
Fuel Injectors
Fuel and Water Separator Sensor
Ignition Coil Testing
Ignition Coil on Plug (COP)
Knock (Detonation) Sensors
MAF (Mass Air Flow) Sensors
MAP (Manifold Absolute Pressure) Sensors
Oxygen (O2) Sensors
T Series Fuel Injector line addition
Throttle Position Sensors
Tire Pressure Monitoring (TPMS) Sensors
TPMS Service and Repair
Two or Four, That is the Question
Vehicle Speed Sensors
Vehicle Warning Lights
Water Intrusion and Premature Coil Failure (UF303)
YAW Rate Sensors
MAF (Mass Air Flow) Sensors

MAF (Mass Air Flow) Sensors
What does a MAF Sensor do?
The Mass Air Flow (MAF) sensor measures the amount of air flow entering the intake manifold using a heated grid or wire. The PCM uses this signal primarily for fuel control.

Where are these sensors located?
The Mass Air Flow sensor is located in the intake ducting after the air filter.

Will a malfunctioning MAF Sensor illuminate the check engine light or affect vehicle operation?
Yes, a failing sensor can illuminate the MIL, and may cause the engine to run rich or lean; the engine may lack power and produce “pinging” noises during part throttle driving.

What are the common causes of failure?
Typically these sensors fail due to exposure to the under hood heat from engine operation or if debris collects on the sensor element.

How to determine if these sensors are malfunctioning.
DTC codes P0171/P0174 may be set due to lean fuel mixtures and P0172/P0175 may be set due to rich fuel mixtures. DTCs P0101 through P0103 may also be set in the computer memory. A scan tool can be used to monitor the MAF data parameter during engine operation.

What makes Standard MAF Sensors the best.

  • Standard has complete control of the remanufacturing process from componentry to finished product
  • 100% Computerized Testing for all sensors using advanced test equipment
  • Common component failures are 100% replaced
  • Upgraded components are used to improve circuit reliability and performance


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