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mass air flow sensor

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Old Sep 13, 2005 | 05:59 PM
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Default mass air flow sensor

Doe anyone know the part number for a mass air flow sensor for a 2001 corvette? also what size tap do I need to clean out the head bolts with or can I us one of the old head bolts? Do I just screw the head studs in to they bottom out or use the same torque as the head bolts?
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Old Sep 13, 2005 | 08:35 PM
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Originally Posted by denscor
Doe anyone know the part number for a mass air flow sensor for a 2001 corvette? also what size tap do I need to clean out the head bolts with or can I us one of the old head bolts? Do I just screw the head studs in to they bottom out or use the same torque as the head bolts?
I have an old parts book that shows part number 25318411 for the MAF
and there are two different head bolt sizes both metric 8x1.25 & 11x2.0

INTHERED
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Old Sep 13, 2005 | 11:20 PM
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part number on the one I have is 25168491 ! did someone give me a wrong one?it doesn't come up on GM parts direct!
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Old Sep 15, 2005 | 02:41 PM
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Both MAF #'s are valid. The 25168491 is made by Delphi (GM supplier) and was used on some '01-'03 cars, probably because of supply shortages of the other one.

If you are using ARP studs then they should have come with instructions. If they didn't then contact your vendor or ARP. You should always use a tap to clean out the bolt holes as it does a much better job and helps insure accurate torque readings. Use the ARP assembly lube for the same reason. I don't know if the ARP thread sealer is needed or desired but I think that would be in their instructions as well as the complete installation procedure

Last edited by SFVetteman; Sep 15, 2005 at 03:05 PM.
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Old Sep 15, 2005 | 03:00 PM
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Don't forget the plug to go with the new MAF.

http://forums.corvetteforum.com/show...251&forum_id=1
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Old Sep 15, 2005 | 03:44 PM
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I have a 2001 with the 85 mas air flow sensor! Sorry need to explain more detail! Old one went bad causing car to go lean!
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