 Air flow sensor rebuild, Any input is appreciated |
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| Tjmrfe |
 Aug 8 2016, 08:36 AM
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#1
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NON IMPEDING RATIONE COGITATIONIS  Group: Members Posts: 132 Joined: 10-April 15 From: Cornwall on Hudson, New York Member No.: 18,612 Region Association: North East States  |
Hey guys...
My air flow sensor comes up with 26 ohms across pins 7-8 ( according to Haynes and my Bowlsby Manuel,) I should have between 120-200ohms) (My 1.8 won't idle...) So, I'm gonna take a look inside...any one else done this? Any tricks, any springs, gonna fly off as I split it? Thank you as always, this is more fun than I wanted it to be.... Terry. |
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| timothy_nd28 |
Aug 8 2016, 09:48 AM
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Advanced Member Group: Members Posts: 2,299 Joined: 25-September 07 From: IN Member No.: 8,154 Region Association: Upper MidWest 
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That's a pretty low resistance. Are you sure that you are measuring pins 7&8 and is your meter on the right scale?
No need to take apart the AFM, all the action happens under the black plastic cover. Typically with age, the resistor plate wears and the resistance of this plate increases. It's weird that you are recording something with less resistance. Does the flap still move freely? It might be time to buy a good rebuilt AFM. |
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| Tjmrfe |
Aug 8 2016, 11:54 AM
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#3
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NON IMPEDING RATIONE COGITATIONIS Group: Members Posts: 132 Joined: 10-April 15 From: Cornwall on Hudson, New York Member No.: 18,612 Region Association: North East States |
QUOTE(timothy_nd28 @ Aug 8 2016, 07:48 AM)  That's a pretty low resistance. Are you sure that you are measuring pins 7&8 and is your meter on the right scale? No need to take apart the AFM, all the action happens under the black plastic cover. Typically with age, the resistor plate wears and the resistance of this plate increases. It's weird that you are recording something with less resistance. Does the flap still move freely? It might be time to buy a good rebuilt AFM. I agree, And yes...all my settings are good. (I repair P.C boards on the side....fix elevators during the day...) But...I've double checked my equipment to ensure accuracy on my end... I'll look into a rebuilt. Thanks for the info. |
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