What causes a trouble code on a MAF sensor?
Possible Causes. Potential causes for this trouble code may include: Dirty or contaminated mass air flow sensor. Failed MAF sensor. Intake air leaks. MAF sensor electrical harness or wiring problem (open, shorted, frayed, poor connection, etc.)
How does the PCM calculate the MAF range?
The PCM detects that the actual MAF sensor frequency signal is not within a predetermined expected range of the calculated MAF value. Note: Some MAF sensors also incorporate an air temperature sensor, which is another value used by the PCM for optimal engine operation.
What kind of engine does the Mercedes ML320 have?
MLs share the M112 engine found in the ML320 and the M113 engine found on the ML430, ML350, ML500. The 722.6 gearbox installed in the ML is one of the most reliable transmission produced. ABS/ETS/ESP lights.
What does trouble code p0101 mean on MAF sensor?
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 P0101 diagnostic trouble code (DTC) means that there is a problem with the Mass Air Flow (MAF) sensor or circuit.
Can a bad MAF sensor cause poor drivability?
A bad MAF sensor can cause your vehicle to experience poor drivability issues such as engine stalling, jerking or hesitation during acceleration. This could happen while speeding up on the highway on-ramp or cruising down a city street.
Where is the MAF sensor on my car?
You may also notice you’re filling up at the gas station more than usual. MAF sensors are located between the air filter and the throttle body and are responsible for measuring the amount of air entering the engine. Most vehicles have a hot wire MAF sensor. It has one heated wire and one ambient temperature wire.
Which is the best OBD code reader for Mercedes Benz?
Top 3 OBD-2 code readers for Mercedes-Benz have been listed under the green column below. 1. OBD II Code Reading Scanners – For ECU Only 2. BlueDriver Scan Tool for iPhone and Android
Why does my car have a bad MAF code?
This code is most commonly caused by a dirty, obstructed, or faulty MAF sensor, but can also be caused by issues including: Damage to the intake boot; Vacuum leaks; Clogged or improperly installed engine air filter; Clogged-up cat converter or restricted exhaust