The key differences between a hot film and hot wire air mass sensor aside from their physical properties, is that the hot film sensor measures a smaller port

2004 bmw 330i. My 2004 bmw 330i currently has the following code: 2783 Hot-Film Air-Mass Flow Sensor and also has transmission warning light on. the car jerks when slowing down around 2k rpm. It is currently at a mechanic shop.The mechanic found various vacuum leaks coming from upper and lower intake boots so those were replaced as well as the

So yeah, just get a can of MAF spray. I use CRC MAF cleaner as well, every time I clean and re-oil the filter. +1000 on don't touch the MAF sensor wire. Also if you have any type of oiled filter, pick up a cleaning/re-oiling "recharge" kit. If at all possible, get one with a spray oil. And SPRAY LIGHTLY.
I turned the car on and checked the voltage for the 3 connectors where it plugs into the MAF. Put the red one into the connector and touched the black to the car body. Pin 1 (closest to the driver) showed ~50mV. Pin 2 showed ~45mV. Pin 3 showed ~14V.

How to test your mass air flow sensor (MAF) and to quickly know if it is defective. Mass air flow sensor testing with a multimeter without dismantling. Meth

A mass airflow sensor for a BMW measures the oxygen flowing to your engine for the perfect air-to-fuel ratio. The mass airflow sensor increases the efficiency of your engine, resulting in optimized performance and enhanced fuel economy. Modern cars use a hot-wire type of airflow sensor. A hot-wire mass airflow sensor has a small, electrically

According to ISTA, that Sensor, B6207a, sends a signal BOTH for Air Mass rate passing the sensor, as well as a signal for Intake Air Temp. Your first post shows reported Intake Air Temp of 18C, so it appears THAT signal of the Sensor and its connector is being received by the DME. An ISTA ScreenPrint of Air Supply SSP for N46 is attached.

iTrader: ( 0) Erratic MAF sensor reading. Hi everyone, Looking through some live data with my scan tool on my f30 2012 320D and came across flow rate for mass air flow sensor, the car was idling and the MAF sensor reading was going crazy. It goes up and down constantly, anywhere from 1 g/s to 18 g/s, it also jumps from a low number to a high

CRC MAF (Mass Air Flow) Sensor Cleaner:

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    • bmw e46 mass air flow sensor problems