E30 Air flow meter problem

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M Warren - 08 Sep 2006 03:16 GMT

1991 318is part # 0 280 202 203
Well, I think I have narrowed down my fuel/acceleration problem. I removed
the air flow meter and put the ohm meter on it. I tried different pin
combinations until I found one with resistance that changed with the movment
of the air flow meter flap. The readings were erratic, jumping around first
high, then low then the same but not the nice smooth sweeing motion I
expected. Is this a reliable sign that the meter is bad? Will a different
part number work? Which ones or where would I look it up? Is there
someplace that I can get one that isn't the dealer, or if someone just
happens to ave one laying around they don't need anymore... Thanks again for
all the thoughts, past and to come.

Matt

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Ulf - 08 Sep 2006 10:26 GMT

> 1991 318is part # 0 280 202 203
> Well, I think I have narrowed down my fuel/acceleration problem. I removed
[quoted text clipped - 7 lines]
> happens to ave one laying around they don't need anymore... Thanks again for
> all the thoughts, past and to come.

I had the same problem on my '92 535. Remove the circuit board and clean
it with alcohol and drill up the holes a little so when you put it back
you can shift it a couple of mm's up or down. That way the needle won't
slide in the same groove as before.

> Matt

Ulf

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