Can a MAF sensor be fixed??
Team Owner
Joined: Sep 2001
Posts: 62,097
Likes: 1,724
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: Can a MAF sensor be fixed?? (vettepacecar)
i'm sure it can, but only by someone who knows exactly how to do it, thats why MAD wants you to send the old one in to be rebuilt.
Heel & Toe
Joined: Nov 2001
Posts: 19
Likes: 0
From: Ikaalinen
Re: Can a MAF sensor be fixed?? (vettepacecar)
I dont know, is Your Maf is broken or dirty. I dont know whether the following procedure is good idea, but I made it to my dirty MAF (1985) and it helped. I found procedure from internet. Be carefull!
esapee
Guide to Cleaning your Mass Air Flow sensor
Tools needed:
Philips head screwdriver
A helping hand or a vise grip of some sort
91% Isopropyl Alcohol
Large Ziploc bag
Compressed air cleaning spray
Paper towels
MAF removal instructions:
Open car hood.
Unplug the MAF sensor, (see pic 1 and 2).
Locate the two Philips head screws that secure the top of the airbox and loosen them (see pic 3).
There is a ring that holds the hose onto the MAF, get your vise grip and press the two tabs together to loosen the ring's grip.
Lift the airbox's top off by pulling upwards and towards the car cabin. There is a smaller corrugated hose connected to the airbox top dierectly below the MAF sensor, remove that by pressing the two press points together.
On either side of the MAF are two philip's head screws that hold it in place, remove them.
The hole that the MAF sensor resides in has a rubber ring that creates a seal, also making in difficult to get the sensor out, some wiggling and pulling will free it.
MAF cleaning instructions:
Take the large Ziploc bag and place the MAF sensor in it.
Pour enough Isopropyl alcohol into the bag to completely cover the MAF sensor (see pic 4).
Gently shake the bag to allow the alcohol to pass through the sensor.
Take the MAF sensor out and let the excess alcohol drip off (see pic 5). Dipose of the Isopropyl alcohol according to local laws.
Set the MAF sensor down on a paper towel to drip/air dry (see pic 6). You may want to use the compressed air spray to blow dry parts such as the connector port.
Allow the MAF sensor to dry completely before reinstalling it in the car. This will take between 1-12 hours.
Reinstall using the above instructions in reverse.
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Re: Can a MAF sensor be fixed?? (vettepacecar)
The resistance of the wire is crucial. There is a guy on the ThirdGen board who knows a lot about these kinds of things and he spent countless hours trying to repair one. I believe he did succeed, but his knowledge was the key.
They can be rebuilt or just buy a replacement for about $100 on the "For Sale" board, or maybe $150 or so at AutoZone.
Jake
[Modified by JAKE, 12:44 PM 11/4/2001]
They can be rebuilt or just buy a replacement for about $100 on the "For Sale" board, or maybe $150 or so at AutoZone.
Jake
[Modified by JAKE, 12:44 PM 11/4/2001]
