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Is it possible to test a MAF SEnsor?

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Old 07-27-2004, 07:41 PM
l-menace's Avatar
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Is it possible to test a MAF SEnsor?

Besides buying a new one and throwing it on there, is there anyway to test the old MAF to make sure it is working correctly?

(Yes the sensor itself is cleaned with a non-residue leaving behind cleaner)
 
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Old 07-27-2004, 07:49 PM
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I know this may sound weird, but I would think you could take a voltage reading and use a hair blower/dryer and aim it at it and see if the voltage changes? I mean it senses Air Flow right, so a hair blower will put out some decent air flow…

Just an idea…

It may measure the resistance change, if so then you would have to take a resistance measurment rather then voltage.

Should have added if you try the hair blower method I would set it on the cool setting, don't know if heat would harm it or not.
 

Last edited by 01 XLT Sport; 07-27-2004 at 07:51 PM.
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Old 07-27-2004, 09:28 PM
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i don't think heat would harm it but it would give some odd readings i think. The maf functions on the cooling effect of air removing heat from one wire as best I kno. vac cleaner might work a lil better. But still don't know how you would really test it.

Best method i think would be to swap it with a buddies to see if it fixes whatever problem your apparently having.
 
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Old 07-27-2004, 09:36 PM
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you could use a scan tool or dvom to test the voltage at idle.

usually if a maf is bad, the voltage is just going to be out in left field somewhere.

without looking up the specs, it should probably be just under 1.0v at idle.

good luck.

later,
chris
 



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