Air flow meter difference

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MatZZ
E30 Zone Newbie
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Joined: Fri Jul 18, 2014 11:00 pm

Post Fri Nov 28, 2014 9:10 pm

Is there any? They dont look different . Could i use m40 one on my m20??
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jimbom30cab
Tech 1 freak
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Post Fri Nov 28, 2014 9:15 pm

nope M20 is bigger mate and i think the 2.5 may be different to the 2.0
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alpina123
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Post Fri Nov 28, 2014 9:41 pm

Number should end in 082 or 083 depending if it is 2 or 2.5ltr
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Grrrmachine
E30 Zone Wiki / Team Member
E30 Zone Wiki / Team Member
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Location: Warsaw, Poland

Post Sat Nov 29, 2014 9:41 am

They differ internally in terms of the electrical signal they send out. So no, you can't put an M40 one on an M20.
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MatZZ
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Post Sat Nov 29, 2014 10:06 am

ok thanks guys. looks like i need an air flow meter
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