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You can also spray the wiring harness connections, both on the car-side plug and maf plug. ![]() #2012 aubaru forester mass air flow sensor problems fullSpray these two parts and let dry a full 5 minutes. Spray up into the tube and let it drip down as the internet says immersion cleaning is not recommended. The matchhead looking thing is the IAT probe and the MAF proper is hidden up inside tube. Mind you, the " | " will probably cut into the plastic MAF housing a bit, but its not much of a concern. ![]() Flush = trying to EZ-out a tiny ass screw and/or helicoil the threads AKA a huge whore of a job. No flush = channel locks and twist it off. You have just created a ghetto standard screwhead! If you attempt to drill the head off, which would work, the odds of you breaking the head off flush with the MAF tube are high. Take a dremel tool with a small cutoff wheel and cut a " | " into the gnarled up screw head. I did this just to show the worst case scenario mind you, as in real life I would never strip a screwhead, but this is how you fix it correctly vice going nuts. Son of a bitch! This is what happens when you strip a screwhead. This is actually one of the easiest wiring harnesses in the entire engine bay. Look closely at the top left screw.looks a little janky doesn't it? Janky screw head + McGilla Gorilla tightening + galvanic corrosion = Maximum Jimmy Rustle. #2012 aubaru forester mass air flow sensor problems freeIf you look at the MAF, it has one super easy electrical connector you release with your thumb to free the wiring harness and 2 Phillips head screws to remove.Īnd here's a closeup of the MAF for those of you that don't know what a MAF looks like. You, in a perfect world, only need a Phillips screwdriver, some MAF cleaner, and a MAF. #2012 aubaru forester mass air flow sensor problems installYou will need these parts because your stock stuff has likely given up the ghost and you are better off looking for them BEFORE the install than after. You can CRC MAF Cleaner, CRC Electrical Contact Cleaner (same as Item 1 only $2 cheaper), or non chlorinated brake cleaner. Should run you a whopping $1 in the real world, and $Texas at the dealership.ĭ. Since this is just an air seal, there's not much need for exotic material, just a plain old O-ring will do. And you could always get these at the dealership if you wear a monocle.Ĭ. And if you think you won't need new MAF screws, I got news for you.you will. You can also get them with socket heads vice Phillips heads, but I'd not recommend those as its easier enough to strip/break the MAF with a screwdriver let alone with a ratchet. ![]() 7 is the size, length stock the internet says is 1" long, but yours may be shorter depending on the intake you have so buy several lengths as a 2 screw bag runs a whopping 60 cents at Home Depot. Read carefully and don't do what I did as I screwed the pooch on this and went to maximum Jimmy Rustle on Father's Day.īuy the supplies you need ahead of time as you may need them and if you don't have them, you have have much suck. Well, how do I clean it? I'm glad you asked as I just did it with pictures as I'm a damned nice guy. Well how often do I clean it? There's some variance in opinion with this from yearly to every other oil change, but suffice it to say, if you have an oil impregnated air filter of one form or another, you should be erring on the side of sooner so you might be best off with every other oil change while the dry filter folks should do it yearly. OK, I'm sufficiently scared, so what do I need to do now? After combining the opinions of the five Famous Name Tuners, this is your recommended route: Clean your MAF often and replace it every 100,000 miles if it needs it or not. For those of you that don't know t00ning, this is a BIG difference! Green line is old MAF, Red line is new MAF. Here is what happens with an old/busted/dirty MAF in the real world: Now that the background is set, here is some information that you should read fully and comprehend. So, I called up Famous Name Tuners 1-5 and axed them to verify and expound on what Dom had written and to the man they said, "That boy has his head screwed on straight!". He made a posting there of results he had with a car on the dyno, before and after MAF replacement and it got me thinking.does Dom know something I don't and if I don't, then MOST Subaru owners won't as other than living in my mom's basement in my underwear, all I do is suck up NASIOC information and I've never heard of MAF issues by and large. I was cruising the interwebs on Facebook and I happen to be FB friends with Dominic Acia, lead tuner and office linebacker of fame. ![]()
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