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Thread: Urgent Help Needed! Where do these wires and this pipe go? AUM 1.8t

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    Urgent Help Needed! Where do these wires and this pipe go? AUM 1.8t

    Hey guys,

    I'm so close to getting my engine converted 1.6 to AUM 1.8 turbo running properly but I'm having an issue at the moment. I have this one set of wires running from my intercooler up to my engine bay which have been cut and I have no idea where they are supposed to go to wire them back together, I took them out of their black casing and these were the wires within:

    IMG-20121118-01116.jpg


    Additionally, behind the coil packs I have this one small pipe which should connect somewhere but we cannot work out where:

    IMG-20121118-01118.jpg

    As it is, the car is hard to start (splutters quite a bit as if the timing is off) and then when it does start it doesn't want to be revved, it's very down on power but will idle fine.

    Thanks for any help in advance!
    FOR SALE:
    FACELIFT AUDI A3/S3 8L TAIL LIGHTS.
    BREAKING COMPLETE 1.8t 5 DOOR MODEL.
    PM INBOX me if you are interested all parts available, thanks!

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    camscockle20vT's Avatar
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    Urgent Help Needed! Where do these wires and this pipe go? AUM 1.8t

    Could it be for the map sensor?

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    I'm certain that's what they are, but where do they connect to the coil pack loom?
    FOR SALE:
    FACELIFT AUDI A3/S3 8L TAIL LIGHTS.
    BREAKING COMPLETE 1.8t 5 DOOR MODEL.
    PM INBOX me if you are interested all parts available, thanks!

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    Urgent Help Needed! Where do these wires and this pipe go? AUM 1.8t

    Quote Originally Posted by Lingo89 View Post
    I'm certain that's what they are, but where do they connect to the coil pack loom?
    Not to sure dude, check a haynes manual or google is best bet.

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    That bundle of wires IS for the MAP sensor, It's a 4 pin plug with only 3 wires going into it. With the map sensor unplugged you get the symptoms you are having. From that picture it looks like that is the map sensor end and not the part that comes from the loom. The map sensor wires are in the the throttle body electrics bundle.

    I considered doing this, but bottled it due to the fact I'd **** it up - VWVortex.com - DIY - MAP Sensor Connectors / Plug & Play Diode Install

    The pipe looks like the one that's meant to go on the top of the N75.
    Last edited by 16Klappe; 18th November 2012 at 17:28.
    Lingo89 likes this.
    I quite often say I'm going to do things.

    Then never do them.

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    Thanks, I have now managed to re-wire my map sensor, was just three wires that needed to be connected back to the loom. Soldered them back together. Still runs like crap, hence this thread:

    Help me get my 1.8t to stop running like crap

    Would the N75 pipe disconnected cause any issues?
    FOR SALE:
    FACELIFT AUDI A3/S3 8L TAIL LIGHTS.
    BREAKING COMPLETE 1.8t 5 DOOR MODEL.
    PM INBOX me if you are interested all parts available, thanks!

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    Yes the N75 pipe being disconnected will cause huge issues with boost control.
    Lingo89 likes this.
    I quite often say I'm going to do things.

    Then never do them.

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    it it's an AUM it's possible that that little stud is one of the redundant pipes for the N249 or original DV feed.

    How do you have your DV and N75 mplumbed up currently?

    Can you trace that pipe? you may find the other end is disconnected as well.
    Lingo89 likes this.
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    Prawns TFSI Turbo'd 1.8T Track Car

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    Quote Originally Posted by Prawn View Post
    it it's an AUM it's possible that that little stud is one of the redundant pipes for the N249 or original DV feed.

    How do you have your DV and N75 mplumbed up currently?

    Can you trace that pipe? you may find the other end is disconnected as well.
    I'm starting to worry about this. Is there anywhere I can check my pipework against pictures of how it should be as standard. I really want to get this all sorted so I can start going nuts with modifications.
    FOR SALE:
    FACELIFT AUDI A3/S3 8L TAIL LIGHTS.
    BREAKING COMPLETE 1.8t 5 DOOR MODEL.
    PM INBOX me if you are interested all parts available, thanks!

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    where are you located?

    having someone with good knowledge of these engines have a look for you would REALLY help you out

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    Quote Originally Posted by superkarl View Post
    where are you located?

    having someone with good knowledge of these engines have a look for you would REALLY help you out
    I live just on the out-skirts of East London and Essex. Indeed I could definitely do with some knowledgeable assistance here.
    FOR SALE:
    FACELIFT AUDI A3/S3 8L TAIL LIGHTS.
    BREAKING COMPLETE 1.8t 5 DOOR MODEL.
    PM INBOX me if you are interested all parts available, thanks!

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    Quote Originally Posted by Lingo89 View Post


    Additionally, behind the coil packs I have this one small pipe which should connect somewhere but we cannot work out where:

    IMG-20121118-01118.jpg

    Have you got a picture showing it from more of a distance?

    I've got so many pictures of my engine bay that I'm sure ill have one showing where it goes
    Audi A3 T sport (8l) AUM 2001..... Stage 1 Remap , Bailey DV30 , HID Headlights , LED Sidelights/Footwells , Catch Can , N249 Bypass , Tinted Windows .....

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    Quote Originally Posted by A3 T View Post
    Have you got a picture showing it from more of a distance?

    I've got so many pictures of my engine bay that I'm sure ill have one showing where it goes
    Okay guys, I've managed to get under the car and see where that pipe goes. It connects to the turbo here; where should it go up top?



    I've also located my N75 valve which appears to all be piped up. I can't see how any of it would be wrong as it was piped to the donor engine before it was fitted to my car and the little metal clamps are so tight they seem to still all be connected from OEM. Here is the N75 setup:

    FOR SALE:
    FACELIFT AUDI A3/S3 8L TAIL LIGHTS.
    BREAKING COMPLETE 1.8t 5 DOOR MODEL.
    PM INBOX me if you are interested all parts available, thanks!

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    *BUMP* Does nobody know about the above? I've ordered a new MAP sensor which should resolve the issues I'm having that but I can see this one unconnected hose causing serious lack of power issues, especially since it appears to be coming from right by the turbo!
    FOR SALE:
    FACELIFT AUDI A3/S3 8L TAIL LIGHTS.
    BREAKING COMPLETE 1.8t 5 DOOR MODEL.
    PM INBOX me if you are interested all parts available, thanks!

  16. #15
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    I think it should go to your actuator,, what turbo is that?

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    Isn't that a left over pipe from the n249 delete that is no longer used on this install. It's sucking air so bung it up assuming its onthat metal TIP

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    Quote Originally Posted by s3dave View Post
    I think it should go to your actuator,, what turbo is that?
    The turbo is a K03S. Still think it should go to actuator?

    Quote Originally Posted by Byzan Pics View Post
    Isn't that a left over pipe from the n249 delete that is no longer used on this install. It's sucking air so bung it up assuming its onthat metal TIP
    What n249 delete? the engine bay is currently completely standard. It most certainly won't be when I can get it running right though!
    FOR SALE:
    FACELIFT AUDI A3/S3 8L TAIL LIGHTS.
    BREAKING COMPLETE 1.8t 5 DOOR MODEL.
    PM INBOX me if you are interested all parts available, thanks!

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    Surely, with all the 1.8t tuners on Audisport, someone must know for sure where this pipe goes!?
    FOR SALE:
    FACELIFT AUDI A3/S3 8L TAIL LIGHTS.
    BREAKING COMPLETE 1.8t 5 DOOR MODEL.
    PM INBOX me if you are interested all parts available, thanks!

  20. #19
    A3 T's Avatar
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    Quote Originally Posted by Lingo89 View Post
    Surely, with all the 1.8t tuners on Audisport, someone must know for sure where this pipe goes!?

    PM sent mate
    Audi A3 T sport (8l) AUM 2001..... Stage 1 Remap , Bailey DV30 , HID Headlights , LED Sidelights/Footwells , Catch Can , N249 Bypass , Tinted Windows .....

 

 

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