2008 bmw 328i mass air flow sensor problems

General BMW and Automotive Discussion sponsored by Intercity Lines.Quick Navigation 1999 - 2006 (E46) Go Top When you drive it around unplugged the car is playing it safe by dumping in tons of fuel so it does not run lean because it doesn't know how much air is coming in so in all you gas mileage gets worse.īut if you do need a new one i would suggest buying it from Type the part number off of your mass air flow onto the part number search on top, they tend to be the cheapest around for mass air flows. What a mass air flow sensor does is it measures the amount of air coming into the engine then it tells the car how much fuel to put in so you have the correct air fuel mixture ratio. What you can do to save you money from buying a new mass air flow sensor is to take out the sensor and get some mass air flow cleaner or electrical cleaner from autozone or any auto parts store, spray down the metal stick inside, make sure you get it really good and then let it dry for about 15 - 20 minutes then reinstall but BE CAREFUL to not drop it and or to hit hard against something then you will have to buy a new one.īut if you do need a new one i would suggest buying it from Type the part number off of your mass air flow onto the part number search on top, they tend to be the cheapest around for mass air flows. When you drive it around unplugged the car is playing it safe by dumping in tons of fuel so it does not run lean because it doesn't know how much air is coming in so in all you gas mileage gets worse.

I just know the engine runs great with it unpluged.ĭavidebby What a mass air flow sensor does is it measures the amount of air coming into the engine then it tells the car how much fuel to put in so you have the correct air fuel mixture ratio. QUESTION: Will a new Mass Airflow Sensor fix this problem or is something further down the line causing the problem? I don't quite understand the function of the sensor so I am unsure. I took it for a ride and it was great to have full power and back to itself again.

With the engine in neutral and barely running I tried unpluging the mass airflow sensor cable and instantly the engine zoomed back to life. (P1348, P1083, & P1085) The engine almost quit on me yesterday afternoon and I limped home at Max 25 MPH.

Hi: This is the continuation to problems that I have had since getting my car out of the shop this week.

2008 bmw 328i mass air flow sensor problems