Diagnostic Trouble Code
P010B
MAF "B" Circuit Range/Performance
Technical Description P010B
Mass Air Flow (MAF) "B" Circuit Range/Performance
What Does This Mean P010B?
This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles (Nissan, Chevrolet, GMC, VW, Toyota, Mazda, Ford, Audi, Honda, etc.). Although generic, the specific repair steps may vary depending on make/model.
The MAF (mass air flow) sensor is a sensor mounted in a vehicle's engine air intake tract downstream from the air filter, and is used to measure the volume and density of air being drawn into the engine. The MAF sensor itself only measures a portion of the air entering and that value is used to calculate the total volume and density of air being ingested.
The powertrain control module (PCM) uses that reading along with other sensor parameters to ensure proper fuel delivery at any given time for optimum power and fuel efficiency.
Basically this P010B diagnostic trouble code (DTC) means that there is a problem with the Mass Air Flow "B" sensor or circuit. The PCM detects that the actual MAF sensor frequency signal is not within a predetermined expected range of the calculated MAF value. Refer to a make/model specific repair manaul to determine which is the "B" circuit for your vehicle.
Note: Some MAF sensors also incorporate an air temperature sensor, which is another value used by the PCM for optimal engine operation.
Closely related MAF circuit trouble codes include:
The MAF (mass air flow) sensor is a sensor mounted in a vehicle's engine air intake tract downstream from the air filter, and is used to measure the volume and density of air being drawn into the engine. The MAF sensor itself only measures a portion of the air entering and that value is used to calculate the total volume and density of air being ingested.
The powertrain control module (PCM) uses that reading along with other sensor parameters to ensure proper fuel delivery at any given time for optimum power and fuel efficiency.
Basically this P010B diagnostic trouble code (DTC) means that there is a problem with the Mass Air Flow "B" sensor or circuit. The PCM detects that the actual MAF sensor frequency signal is not within a predetermined expected range of the calculated MAF value. Refer to a make/model specific repair manaul to determine which is the "B" circuit for your vehicle.
Note: Some MAF sensors also incorporate an air temperature sensor, which is another value used by the PCM for optimal engine operation.
Closely related MAF circuit trouble codes include:
Symptoms P010B
1
Malfunction indicator lamp (MIL) illumination (a.k.a. check engine light)
2
Rough running engine
3
Black smoke from tail pipe
4
Stalling
5
Engine hard start or stalling after it starts
6
Possible other driveability symptoms
Possible Causes P010B
1
Dirty or contaminated mass air flow sensor
2
Failed MAF sensor
3
Intake air leaks
4
MAF sensor electrical harness or wiring problem (open, shorted, frayed, poor connection, etc.)
5
Clogged catalytic converter on some models (GMC/Chevrolet mainly)
Solutions & Repair Steps P010B
Possible diagnostic and repair steps include:
If you do need to replace the MAF sensor, we recommend using an original equipment OEM one from the manufacturer rather than buying an aftermarket part.
Note: The use of a reusable oiled air filter could be a cause of this code, if it is over-oiled. Oil can transfer to the fine wire or film inside the MAF sensor and contaminate it. Use something such as MAF cleaner spray to clean the MAF in such situations.
If you do need to replace the MAF sensor, we recommend using an original equipment OEM one from the manufacturer rather than buying an aftermarket part.
Note: The use of a reusable oiled air filter could be a cause of this code, if it is over-oiled. Oil can transfer to the fine wire or film inside the MAF sensor and contaminate it. Use something such as MAF cleaner spray to clean the MAF in such situations.