The sensor itself is located near the air filter housing on the driver s side of the engine. Removal page 4 figure.
Bmw E 90 Mass Air Flow Sensor Replacement Youtube
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2011 bmw 335i mass air flow sensor location. Free same day store pickup. This guide applies to bmw e90 e91 e92 and e93 vehicles manufactured from 2004 2013. In this guide you will find instructions on how to change the mass air flow maf sensor on a 2004 2013 bmw 3 series.
Leave the flexible intake coupler and clamp in place. This results in greater combustion efficiency and lowered emissions note to zeichen of course you are technically correct. The oxygen sensor can only keep the mix between about 13 8 to 15 6 when the theoretical best air fuel ratio stoichiometric is 14 7 1.
Mass air flow maf sensor. Diy maf sensor cleaning n54. Remove the top half of the oe air intake which consists of the tube and cover.
2019 previous generations. 2007 bmw 335i p0171 and p0174 change spark plugs and coils map sensor inter grated with mass air flow smoke test three times no leaks don t what s next running rough at start up read more jayputelis. Appreciate 0 quote 10 23 2014 02 30 pm.
2007 335i mass air flow. Order bmw 335i mass air flow sensor online today. An a f ratio sensor can help keep the mix to 14 5 to 14 9 1.
So my n54 335i doesn t have a mass air flow sensor. Installation location for 1 o2 sensor connectors. Disconnect the maf sensor harness from the sensor.
Mass air flow sensors accuracy skews over time and can lead to fault codes or drivability problems. The n54 does not have a maf afaik. Instead it has two pressure sensors as shown in this tis air supply circuit diagram for 2007 335i built after 3 1 2007.
Hi i replaced the maf sensor on my 2011 bmw 328i sedan. 2008 bmw 335i e90. The mass air flow sensor monitors air flow into the engine and creates a digital signal for the dme.
Unclip the 4 clips on the intake cover and be careful not to let them fall out. The mass airflow sensor is held in place with two screws and is very straightforward to replace. I cleared the codes and after driving it for about 5 minutes the check engine light.
Here are tis circuit diagrams for a lambda control or o2 sensors b fuel tank vent valve.
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