Mass Air Flow Meter Prob?? - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 03-30-2005, 01:38 AM
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I've got an issue with my 1.8 E36.

The idle keeps dropping off and then coming back, sometimes stalling before it does.

Also the revs are limited to about 4,500 in 3rd, 4,800 in 2nd etc. However, if you take it up to this limit point then change up, it takes a while for the power to kick back in

I've checked all the usual for the idling (ICV, vacuum leak etc), and think that maybe both the problems are related to the MAF meter.

Does anyone know if this is a likely cause and also, is there any way of checking that the air flow meter is working?

Cheers
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#2 (permalink) Old 03-30-2005, 07:24 AM
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The MAF is a pretty simlple instrument, if upon removal, it doesn't appear to be clogged, or the sensor itself isn't damaged or coated in road muck, then I would look elsewhere.

You said you checked your ICV, how? Did you remove it and make sure that it moves freely when you rattle it?

How many miles has it been sense you O2 sensor has been replaced?

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#3 (permalink) Old 03-30-2005, 12:49 PM
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Quote:
Originally posted by proudm@Mar 30 2005, 12:38 AM
I've got an issue with my 1.8 E36.

The idle keeps dropping off and then coming back, sometimes stalling before it does.

Also the revs are limited to about 4,500 in 3rd, 4,800 in 2nd etc. However, if you take it up to this limit point then change up, it takes a while for the power to kick back in

I've checked all the usual for the idling (ICV, vacuum leak etc), and think that maybe both the problems are related to the MAF meter.

Does anyone know if this is a likely cause and also, is there any way of checking that the air flow meter is working?

Cheers
[snapback]321386[/snapback]
Hey

I just had a problem similar to yours. My 318i would choke and spudder when car started and if you didn't give it enough gas it would die. Then I would be driving for awhile and out of nowhere it would drop down in revs then back up. We thought it was fuel filter but it was the Air flow meter. Got that replaced and everything was fine. I took mine to a shop and found the problem.

Good luck on yours.
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