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Old 07-03-2006, 11:23 AM   #1
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cleaning maf

I am going to take out my kn filter, and clean my maf sensor to see if that solves my hesitation issues

Can i gently spray it with brake clean or do i need a special MAF cleaner?
thanks
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Old 07-03-2006, 11:30 AM   #2
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Go to circuit city, radio shack or future shop and get "electrical contact cleaner" and spray it on the maf, I doused the **** out of it and it will air dry in seconds.
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Old 07-03-2006, 11:33 AM   #3
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perfect thanks....shud i take the sensor out or just spray it in the car
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Old 07-03-2006, 11:50 AM   #4
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I would say take it out so that you 1.have a better chance of cleaning it compleatly and 2. don't just blow the crap down further in the intake. BUT how many miles do you have on it? It shouldn't get dirty very fast.
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Old 07-03-2006, 12:32 PM   #5
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I would say take it out so that you 1.have a better chance of cleaning it compleatly and 2. don't just blow the crap down further in the intake. BUT how many miles do you have on it? It shouldn't get dirty very fast.
3700km but the problem started once i put the Kn filter in....and yes it is installed correctly

So i figured maybe i have a light coating of filter oil on the maf....its worth a try
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Old 07-03-2006, 12:34 PM   #6
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err.... i used a pipe cleaner
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Old 07-03-2006, 01:10 PM   #7
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I can't see where this is going to help the problem at all. I always get a little worried about messing with the maf because they are so expensive to replace.
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Old 07-03-2006, 01:19 PM   #8
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we used to clean them with brake kleen as part of a failed emissions diagnoses, jsut make sure the cleaner is all off and you should be fine.... Good Luck!!
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Old 09-01-2006, 07:07 PM   #9
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Will WD-40 do the job ??
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Old 09-01-2006, 07:41 PM   #10
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Will WD-40 do the job ??
No. It will leave a light oil residue and screw the MAF up.
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Old 09-01-2006, 08:47 PM   #11
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No. It will leave a light oil residue and screw the MAF up.
Thousand thanks, glad i asked before trying
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Old 09-01-2006, 09:08 PM   #12
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I have used brake cleaners on my maf several times with no bad results.
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Old 09-01-2006, 09:26 PM   #13
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Quote:
Originally Posted by snarkee
I am going to take out my kn filter, and clean my maf sensor to see if that solves my hesitation issues

Can i gently spray it with brake clean or do i need a special MAF cleaner?
thanks
CRC Makes a spray on maf cleaner now...

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Old 09-01-2006, 09:40 PM   #14
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CRC Makes a spray on maf cleaner now...

Interesting
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Old 01-30-2007, 04:07 PM   #15
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Time to open a dead thread. I think something is wrong with my MAF. Im getting a Too Rich CEL with 60's and i use a K&N CAI.

A mass airflow sensor is used to determine the mass of air entering the engine. The air mass information is necessary to calculate and deliver the correct fuel mass to the engine. Air is a gas, and its density changes as it expands and contracts with temperature and pressure. In automotive applications, air density varies with the vehicle's operating environment, and is an ideal application for a mass sensor.
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Old 01-30-2007, 04:14 PM   #16
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What do your long term fuel trim values look like?

MAF sensors have a self cleaning ability that really shouldn't need touched unless you just went muddin or something.
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Old 01-30-2007, 04:37 PM   #17
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What do your long term fuel trim values look like?

MAF sensors have a self cleaning ability that really shouldn't need touched unless you just went muddin or something.
-20.3 at idle. reason i think it is the MAF with Stage 2 i was seeing 131 IDC with Stock 3 in pulley and now with 60's i see 90 IDC with 2.8
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Old 01-30-2007, 04:43 PM   #18
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Being that far off, it sounds more like the tune rather than the MAF. You would probably go into limp mode or at least throw a MAF sensor performance code. The PCM checks airflow sensor readings against the SCIP to BARO , MAP, and TPS to find faulty sensors. If your MAF is the problem, it would show out of range to expected values and throw a p0101 DTC.
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Old 01-30-2007, 05:00 PM   #19
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Being that far off, it sounds more like the tune rather than the MAF. You would probably go into limp mode or at least throw a MAF sensor performance code. The PCM checks airflow sensor readings against the SCIP to BARO , MAP, and TPS to find faulty sensors. If your MAF is the problem, it would show out of range to expected values and throw a p0101 DTC.
Reason i think it is the MAF.The MAF tells you VCM/ECM how much air is coming in to the engie right? if something casues the maf to misread the amount of air coming in weather is telling the system is has less air then is actually coming in or saying there is more air then actually coming in the injectors adjust to that right ?
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Old 01-30-2007, 05:02 PM   #20
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After an evening at the track, racing in the rain, my MAF got contamination on it (I think air filter oil w/water emulsion.) It kept throwing a p0171 (lean) code. I tried resetting it for a few days afterwards, hoping it would clear itself, but to no avail. I finally took it off and sprayed it down with brake/contact cleaner. I haven't thrown a code since.

It's def. worth a try. It's a cheap, easy fix that just might work.
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Old 01-30-2007, 05:03 PM   #21
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I don't think a MAF malfunction would be that consistant though.
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Old 01-30-2007, 05:11 PM   #22
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Reason i think it is the MAF.The MAF tells you VCM/ECM how much air is coming in to the engie right? if something casues the maf to misread the amount of air coming in weather is telling the system is has less air then is actually coming in or saying there is more air then actually coming in the injectors adjust to that right ?
As I said in my last post, the PCM can get an idea of when the MAF is reporting values that aren't reliable. The MAF isn't the only sensor that measures incoming airflow. Did you get the fuel trim rich code with the Stage 2 tune?

Its worth a shot, cleaning the MAF, I just wouldn't expect much. Most MAF sensors have the ability to superheat themselves to burn off anything that may contaminate the sensor.
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Old 01-30-2007, 05:46 PM   #23
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As I said in my last post, the PCM can get an idea of when the MAF is reporting values that aren't reliable. The MAF isn't the only sensor that measures incoming airflow. Did you get the fuel trim rich code with the Stage 2 tune?

Its worth a shot, cleaning the MAF, I just wouldn't expect much. Most MAF sensors have the ability to superheat themselves to burn off anything that may contaminate the sensor.
No i didnt but at 7000 my IDC was at 131% with a Stock 3 inch pulley
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Old 05-16-2007, 05:39 PM   #24
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CRC Makes a spray on maf cleaner now...

sorry to bring baCK and old thread but i was just looking something to clean my MAF sensor and i ended up getting a cleaner and 10hp to the wheels! look closely @ the product!
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Old 05-16-2007, 07:28 PM   #25
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break cleaner is the same as intake cleaner.
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