Maf sensor and power duct problem
Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 15
Likes: 0
From: Lockport IL
Maf sensor and power duct problem
My maf is actually too small to fit inside the power duct! not exactly sure why. The air bridge is definitely for my year (1999) because it has the iat provision in it to install the sensor. The outside diameter of my maf is 3.5" where the inside diameter of the power duct is 3-3/4". i doubt the little relief cut will allow the plastic to seal that 1/4"... I may just have to put the maf at the filter instead of relocating it up by the throttle body. (I'm running a Nick Williams 102) Anybody else have this issue? trying to decide whether to ditch it for the 85mm ZO6 or just run mine at the filter. I think the MAF was de-screened by the previous owner and also the plastic aftermarket ends installed?
Melting Slicks
Joined: Oct 2007
Posts: 2,464
Likes: 2
From: Cedarburg, WI
My maf is actually too small to fit inside the power duct! not exactly sure why. The air bridge is definitely for my year (1999) because it has the iat provision in it to install the sensor. The outside diameter of my maf is 3.5" where the inside diameter of the power duct is 3-3/4". i doubt the little relief cut will allow the plastic to seal that 1/4"... I may just have to put the maf at the filter instead of relocating it up by the throttle body. (I'm running a Nick Williams 102) Anybody else have this issue? trying to decide whether to ditch it for the 85mm ZO6 or just run mine at the filter. I think the MAF was de-screened by the previous owner and also the plastic aftermarket ends installed?
Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 15
Likes: 0
From: Lockport IL
according to the instructions I received, the maf is supposed to slide into the plastic end of the duct (doesn't make much sense to me) and the hose steps up to the tb size. I'll try for pics later
Melting Slicks
Joined: Oct 2007
Posts: 2,464
Likes: 2
From: Cedarburg, WI
Last edited by vsocks1; Jul 18, 2011 at 07:32 PM.
Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 15
Likes: 0
From: Lockport IL
I have the older MAF with the two ends. Not the easiest to tell from a picture, but it's definitely loose in the air bridge. I'm afraid to try and tighten the clamp and risk splitting the air bridge where the relief cut is.
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Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 15
Likes: 0
From: Lockport IL
mrm1149, I actually have that same air box. I will probably just run mine in the same location as you, like it was before the new air bridge. I can't see that much benefit from moving the maf to right in front of the throttle body anyway. The maf sensor definitely does not fit near as snug in the plastic bridge as my picture looks
Le Mans Master
Joined: Oct 2004
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From: Zephyrhills, Florida
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13
Instructor
Joined: Sep 2006
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From: Cedar Falls IA
I had the same issue with my 97.
This might be a little redneck....but I wrapped the end (built up diameter) of my MAF with duct tape......yes duct tape.
I did not make the fit "super tight" just enough tape to snug it up and then tightened the clamp.
Seems to work good.
I would be open to a better suggestion?
This might be a little redneck....but I wrapped the end (built up diameter) of my MAF with duct tape......yes duct tape.
I did not make the fit "super tight" just enough tape to snug it up and then tightened the clamp.
Seems to work good.
I would be open to a better suggestion?
Thread Starter
Heel & Toe
Joined: Jul 2011
Posts: 15
Likes: 0
From: Lockport IL
I'm running a catch can setup and will be blocking off the passenger front tube (from the valve cover) with a vaccuum plug. I dont have the ability to run a hose to the NW throttle body so I will be running an aftermarket breather from CASPER electronics that replaces the oil cap.
