Maf Question

doobismaximus

Member

Jul 18, 2014

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Anywhere usa

Aug 31, 2014

#1

• Aug 31, 2014

• #1

So i got codes 157 and 158. Maf is above and below voltage. Dont understand how it could be both at the same time, unless its junk. Its the original. Have had a cold air intake on it.
My question to you guys is can i clean it, if so what is the best way. I noticed it has two prongs inside this smaller hole. Im guessing these are the above and below voltage sensors.
Any input would be nice.
If i have to get a new one would it be beneficial to get a 73mm one calibrated for 24lb injectors. Am slowly building up the car...

 

D

Dacon

Active Member

Nov 6, 2005

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Aug 31, 2014

#2

• Aug 31, 2014

• #2

The black unit on the housing needs to be removed. A T20 security torx is needed (Torx with a hole in the middle). Remove torx bolts, then CAREFULLY pull the unit straight up, careful not to twist/angle it. Spray sensor/wire with MAF cleaner, reinstall being VERY careful not to hit wires/sensor when putting back in the hole, make sure the o-gasket doesn't fall off either.

http://www.bullittarchive.com/1007.htm - Newer MAF is exposed, so it shows the process in car instead of in house with the piece you pulled from the airbox.

 

doobismaximus

Member

Jul 18, 2014

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Aug 31, 2014

#3

• Aug 31, 2014

• #3

Thanks Dacon, that about sums up what i was looking for as far as trying to fix/ clean f his thing

 

ronstang94

Member

May 10, 2007

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Phx, AZ

Aug 31, 2014

#4

• Aug 31, 2014

• #4

You can probably do a better job cleaning it while it is taken apart but this is not 100% necessary. I have always cleaned mine by just removing the MAF from the car, spraying electronics cleaner through the hole and using q-tips to very very gently clean the wires inside. This is how I was taught to clean it, and it has worked very well for me for several years.

 

Reactions: doobismaximus

doobismaximus

Member

Jul 18, 2014

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Anywhere usa

Sep 1, 2014

#5

• Sep 1, 2014

• #5

I might try this cause its like 35$ at advance for a set of the torx bits that have the security hole i n them.
Im all about saving a couple of bucks

 

D

Dacon

Active Member

Nov 6, 2005

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Sep 1, 2014

#6

• Sep 1, 2014

• #6

An individual security torx bit is about $2. Check any parts store, or big box store with tools.

 

doobismaximus

Member

Jul 18, 2014

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Sep 1, 2014

#7

• Sep 1, 2014

• #7

My typical luck they only had full set. Will probly just buy the set. A man can never have enough tools

 

D

Dacon

Active Member

Nov 6, 2005

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Sep 1, 2014

#8

• Sep 1, 2014

• #8

Lowes / Homedepot has 4/2 packs of t10-t30 security torx, might be one nearby.

Could also ask your local advance to order - http://shop.advanceautoparts.com/p/otc-t20-tamper-resit-torx-1-4-otc5922/28030498-P?searchTerm=torx tamper