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  1. #1
    Loupigs's Avatar
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    Lumpy idle... Time to admit my MAF has seen better days?

    Boys and girls,
    After frightening the life out of me this weekend with an engine speed sensor fail and stalling at every junction in city centre rush hour traffic and then just refusing to start, my car now idles erratically. The boy wonder fixed the crank sensor problem with the 22 part from GSF and that's now all cleared on VAGCOM, but the revs are erratic and it has intermittent misfires at idle. Humph. Coupled with the way the car sometimes hesitates at 3.5k when I'm pulling away hard, is it time to assume my MAF needs replacing? Does anyone know the specific part number? Mine's a 2002 1.8T 150bhp AUM with minimal mods. There are several cheap options and then the Bosch one, 150ish on eBay or a bit less with Eurocarparts.

    Other than that, ideas? It had new plugs with a full service 6 months/5k ago, coilpacks are on tight and the throttle body is clean as a whistle.

    Ta much.xxx
    You aren't stuck in traffic.... You are traffic

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  3. #2
    "Stick a V8 in it!"

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    unplug it and see if it improves.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
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  4. #3
    Loupigs's Avatar
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    Boy wonder has the car for the day, is going to test it later on a route where I know the car is usually a bit sticky.
    You aren't stuck in traffic.... You are traffic

  5. #4
    finesse's Avatar
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    could be vac leaks, coilpacks or plugs, or a MAF gone wrong

  6. #5
    16Klappe's Avatar
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    Seriously love, I think this just might be part of the problem...

    Can you see it yet?


    Now maybe?


    Oh yea, here we go!


    Silicone replacement please

    Will unplug the MAF on the way home, but I think we've found our problem there!

    "Ewwww, put my engine covers back on. It looks horrible..." (lol) Function over form baby!
    I quite often say I'm going to do things.

    Then never do them.

  7. #6
    JD09's Avatar
    I'm not modding, I'm improving

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    Ooooft. That's not a leak, that's a flipping huge gaping hole!

  8. #7
    Loupigs's Avatar
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    Technically I wanted the covers back on because they were covering my boot in grot!
    You aren't stuck in traffic.... You are traffic

  9. #8
    16Klappe's Avatar
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    You knows it dude!

    Humpf

    PCV system out the window and fit a spanking catch tank maybe?
    I quite often say I'm going to do things.

    Then never do them.

  10. #9
    Prawn's Avatar
    My other car is a MINI!!!!

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    Quote Originally Posted by 16Klappe View Post


    Oh yea, here we go!


    Silicone replacement please

    No. No silicon replacement, I've told you this before boy!

    The cheapest, AND best solution, is to do away with the n249, and the entire PCV system, as it's a huge load of ******** that's full of leaks.

    Sack all that lot off, and do an n249 bypass, which will cost you about 3 for the silicon, then buy a catch can on ebay, 30 for the one I have, and about 15 for all the hose and T you require, and the whole lot can be fitted in about 2 hours start to finish.

    So, that'll be the whole PCV leak system gone, the nasty n249 bypassed, and all for 50
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  11. #10
    16Klappe's Avatar
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    Well Prawn, if I buy the bits fancy helping me do it when you come home for Crimbo?

    X
    I quite often say I'm going to do things.

    Then never do them.

  12. #11
    Prawn's Avatar
    My other car is a MINI!!!!

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    I guess I could do..... won't take long!

    ebay round catch tank, 19mm T piece, 19mm oil hose, clips for all of it, and 2m of vacuum line.
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  13. #12
    Prawn's Avatar
    My other car is a MINI!!!!

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    Will look like this:



    Oh, and you need a jetex filter too!
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  14. #13
    Loupigs's Avatar
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    I'll get the bits, it's a date...
    You aren't stuck in traffic.... You are traffic

  15. #14
    DaveA3's Avatar
    Audi A-Trizzle!

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    wanna swing by milton keynes on ur way n erm do mine aswell lol ill give ya beer n fuel money :P

    Audi A3 1.8T Sport (AGU) - 2000
    Engine: Carbonio CAI/Jetex JR Hybrid Induction, Forge 007p DV, Forge TIP, Longlife S/S Custom Exhaust system, R-Tech Stage 1 Remap, Creation Motorsport Boost Pipe Kit.
    Exterior and Chassis: 18" Cades Tyrus, Euro Wipers, low on JOM Coilovers, Eibach Front & Rear ARB's, Black Angel Eye Headlights, 6000K HID's, S3 Brakes.
    For Sale PM ME - £2500 Mods Inc

  16. #15
    Prawn's Avatar
    My other car is a MINI!!!!

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    yours is an AGU Dave, so you havn't got an N249 to worry about!

    can happily do a catch can install though, although you'd have to decide where you want the can placed, as that's down to personal preference really. on an AUM it's dead easy to just bolt it to the battery box ike on mine.
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  17. #16
    16Klappe's Avatar
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    Filter is sorted.

    I love you Prawn, bffl.

    Seriously though, poor Audi! Phone me on your way home tonight Pronz, also I'll send you my xbox adapter so we can play Forza.
    I quite often say I'm going to do things.

    Then never do them.

 

 

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