P0102 means that the engine control unit has identified that the mass air flow (MAF) sensor’s signal is below the normal range. The device is used to measure the volume and density of air flowing into the car engine components. The control module then uses this information to regulate the intake of air and fuel delivery. This fault therefore has a direct impact on the vehicle’s performance.
Common causesIt indicates that not enough air is passing through the intake system or that there is a problem with the MAF sensor.
In some cases, yes. For example, this DTC may appear and disappear in vehicles with a high mileage after starting the engine or when the unit is under high loads.
It might be possible to clear it by disconnecting and reconnecting the MAF monitoring device from the power supply. Alternatively, you can reset the DTC by disconnecting the negative battery terminal for 15 minutes to restart the car’s computer. To remove it more permanently, it is necessary to repair the system. After doing so, you can reset the codes with the scan tool.
This will depend on the nature and severity of the fault. Simple faults such as a dirty engine air filter can be fixed for less than £80 (GBP) as the component itself is inexpensive and relatively easy to install. Replacing the MAF sensor itself can cost around £150 - £200. DIY repairs are cheaper, but replacing entire assemblies will cost much more than individual components.
Fault code P0102 - Mass or Volume Air Flow Circuit Low can occur with any car but is most often found on the following cars:
If you get the code P0102 on your car, make sure that the diagnostics are carried out correctly and the error is still relevant. Check for symptoms associated with the problem and explore options for resolving it.
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