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Effects of Dirty mass Air Flow Sensor

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  • Effects of Dirty mass Air Flow Sensor

    Hello!!

    Can some expert please respond detailing the effects on performance/acceleration of a dirty/damaged MAF sensor.

    I have a 2000 Petrol Prado GXL (manual).

    Thanks so much

    Jess and Dale.

  • #2
    Hello Jess,
    I don't have experience with a dirty MAF sensor I'm sorry, but I am sure someone will be able to post some info. Its so simple to clean the MAF sensor that I have never let it get unduely dirty. Unclip the electrical attachment and unscew two two small screws, and carefully remove the assembly, and you use something like CRC MAF sensor cleaner (although some people have posted using other appropriate spray cleaners), You can buy a can of MAF sensor cleaner from an auto store. You spray the senor wires liberally, being very careful not to touch the wire or dislodge it. And when you re-install it make sure it seats properly...and reconnect the electrical connection. Don't drop it, or drop any scews in the process, and its that simple. I clean it every time I change the air filter, from memory thats every 20,000km, or if I have been outback, after a dusty desert trip.

    Thanks so much

    Jess and Dale.[/QUOTE]
    SE Qld: GX 150GD Auto, (Feb'16 build): TJM T15 steel b bar, 9,500lb TORQ winch, TJM s steps, Rhino Pioneer Platform (42102B 1928X1236mm), front recovery points, Wynnum towbar, P3 brake controller, TNN Underbody guards, UHF, TREKtable & LED striplight, Custom Fridge & Drawers, Waeco CFX50, 9inch illuminator 160W LED spots, 40mm lifted Dobinson Suspension (Zordo's), ScanguageII, 30 Sec Wing Awning

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    • #3
      Loss of Power at take off and slow acceleration until the revs reach about 3000rpm this is for the late models with the Wire MAF 1999 1/2 on.

      If cleaning use MAF cleaner as Carbie Clean is too aggressive.

      Here is a link to a Video for a FJ Cruser the Prado MAF is Similar

      http://vimeo.com/2634971


      Rattles
      Last edited by Rattles; 29-12-2014, 10:21 AM.

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      • #4
        It can cause all sorts of things from increased fuel usage, engine lights to come on (if running rich or lean), general rough running.
        2007 GXL V6 - ARB Bullbar with LED lights, snorkel, extractors, 2 1/4" dual exhaust, K&N filter, dimpled/slotted rotors, headrest dvd players, Ebay Satnav/reverse camera, GME 3100TX, Tigerz11 Side awning on custom brackets with Maxtrax mounts, 300W Invertor, ARB Underbody protection, Lightbar and STZ 265/70 tyres.
        Wish list in order I'll get them: Sliders, 2" lift, E-locker, Winch bar with winch.

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        • #5
          M A F is KING.

          Clean it every time you change your air filter.

          Crc maf cleaner is the go.

          Many symptoms.

          Comment


          • #6
            What about my old girl? The 1kz has two different sensors instead of a MAF? I know where one is, in the side of the intercooler. But I don't know where the other is. Also do I clean them with MAF cleaner too? Maybe that's why my economy is crappy?


            Sent from my iPad using Tapatalk
            Cheers
            Blake

            04 Silver Diesel GXL with lots of stuff
            [SIGPIC][/SIGPIC]

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