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  1. #1
    Senior Member Three Rings b5power's Avatar
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    Car shutting down...plz help!

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    Well today i was on my lunch break, when i was driving my rpm starts to bog up and down i was like,"WFD!"then shuts off at a complete stop and did this for awhile too, thank goodness i was able to make it back on time.lol. All i can think of was the the spark plugs or coil packs or even be the GIAC CHIP (recently installed from AWE_TUNING). I've heard that if the chip wasnt soldered well enough it might mess up the car. is that true? correct me if im wrong.please help me. any suggestions. thanks
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  2. #2
    Veteran Member Four Rings audiness's Avatar
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    Jan 26 2007
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    Charleston SC

    Re: Car shutting down...plz help!

    are you getting a CEL? have you checked for codes?

  3. #3
    Senior Member Three Rings b5power's Avatar
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    Re: Car shutting down...plz help!

    yeah i have a CEL, im going to autozone tomorrow to check for the code. hopefully its nothing major.
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  4. #4
    Senior Member Three Rings b5power's Avatar
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    Re: Car shutting down...plz help!

    well just got home, got in my car, turned the key, the car turned on and 3 seconds later it just shuts off. whats wrong. now i can even drive my car to autozone. gez!
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  5. #5
    Registered Member Four Rings Zodiak's Avatar
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    Feb 11 2004
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    Washington DC

    Re: Car shutting down...plz help!

    5spd or tip?

    Do you have a boost guage?

    Without more information (like fault codes) it's hard to diagnose, but I would first check the bypass valve. Since it's easy to replace and relatively cheap.

  6. #6
    Senior Member Two Rings DTMGuy's Avatar
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    Jul 24 2005
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    98.5 Audi A4 1.8T Quattro, 04 Nissan Armada
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    Re: Car shutting down...plz help!

    this happen to me recently... it turn out to be my MAF...

  7. #7
    Senior Member Three Rings b5power's Avatar
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    B5 1.8T
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    Las Vegas, NV

    Re: Car shutting down...plz help!

    Its tip and unfornately i dont have a boost gauge, well just 5 minutes i was able to pull in my garage after like 7 minutes of trying. gezz! well i took out the ecu and took off the top part to see if the chip was soldered good and it looked good to me, should i look out for anything else when i see if it was soldered properly. i diconnected the battery, throttle. MAF.
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  8. #8
    Senior Member Three Rings b5power's Avatar
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    Re: Car shutting down...plz help!

    Quote Originally Posted by DTMGuy View Post
    this happen to me recently... it turn out to be my MAF...
    how did you know it was you MAF did you get a code?and did you clean the MAF or replace the MAF?
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  9. #9
    Veteran Member Four Rings TurbousMaximus's Avatar
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    Aug 25 2004
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    Whitehall, PA

    Re: Car shutting down...plz help!

    if you disconnect the maf and the car still doesn't turn on, then its not the maf.
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  10. #10
    Veteran Member Three Rings
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    San Jose, CA

    Re: Car shutting down...plz help!

    i would say that its your ecu. sorry.
    do u have a 2nd ecu or can somebody lend u one for a day or so

  11. #11
    Veteran Member Four Rings DeanUW's Avatar
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    Feb 22 2007
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    Re: Car shutting down...plz help!

    I dont know about the rpms going up but if they are going down and your car seems to die at idle it may be a large boost leak.

  12. #12
    Senior Member Three Rings b5power's Avatar
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    Re: Car shutting down...plz help!

    Quote Originally Posted by Ado View Post
    i would say that its your ecu. sorry.
    do u have a 2nd ecu or can somebody lend u one for a day or so
    deng, nah i dont have a 2nd ECU or anyone to lend me one for a day : (
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  13. #13
    Senior Member Three Rings b5power's Avatar
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    Re: Car shutting down...plz help!

    Quote Originally Posted by DeanUW View Post
    I dont know about the rpms going up but if they are going down and your car seems to die at idle it may be a large boost leak.
    yeah i do have a boost leak somewhere i thought i found it and fixed it but i guess i ONLY FOUND ONE of them...
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  14. #14
    Veteran Member Four Rings DeanUW's Avatar
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    Re: Car shutting down...plz help!

    Hmm, I'm still not 100% sure its a boost leak due to me not having all the facts and witnessing the symptoms myself but did this problem start off not too bad and increasingly getting worse till you cant really drive it at all?? Do you have any Intercooler work, FMIC, anything from hot side or cold side of intercooler that may become loose?

  15. #15
    Veteran Member Four Rings
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    North Wales, PA

    Re: Car shutting down...plz help!

    you could have blown off a hose off the IC or off the turbo with the increased boost.
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  16. #16
    Registered Member Four Rings Zodiak's Avatar
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    Re: Car shutting down...plz help!

    I doubt it's your ECU. But you could always post on your regional forum and see if some one with a similar engine can stop by for 20min and swap for a second so you can rule it out of the equation.

    I would check every vacuum hose to make sure that nothing is disconnected or breaking apart. Might as well invest in a boost gauge now.

  17. #17
    Registered Member Two Rings B5-B_Broke's Avatar
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    Apr 11 2007
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    FlORIDA

    Re: Car shutting down...plz help!

    theres a great boost leak test check out http://fix your shit has a bunch of other walk throughs with the maf some say to use alcohol and put it in a bag and swish lightly and let dry over night i just bought the maf spray cleaner it works great. but check the vacuum hoses and i doubt a leaky DV would do that. and if it was stuttering real bad then you might have a real bad misfire.

  18. #18
    Senior Member Three Rings b5power's Avatar
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    Re: Car shutting down...plz help!

    Thanks everybody
    euroBREED
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  19. #19
    Senior Member Three Rings b5power's Avatar
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    B5 1.8T
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    Re: Car shutting down...plz help!

    Quote Originally Posted by DeanUW View Post
    Hmm, I'm still not 100% sure its a boost leak due to me not having all the facts and witnessing the symptoms myself but did this problem start off not too bad and increasingly getting worse till you cant really drive it at all?? Do you have any Intercooler work, FMIC, anything from hot side or cold side of intercooler that may become loose?
    yeah at 1st is wasnt too bad than it got worse like within 5minutes and i had to keep stepping on the gas, you know, everything is stock except the chip and i 've been having to drain OIL out of my intercooler hoses : ( for quite awhile now. o i have a stock IC.
    euroBREED
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  20. #20
    Senior Member Three Rings b5power's Avatar
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    Re: Car shutting down...plz help!

    Quote Originally Posted by B5-B_Broke View Post
    theres a great boost leak test check out http://fix your shit has a bunch of other walk throughs with the maf some say to use alcohol and put it in a bag and swish lightly and let dry over night i just bought the maf spray cleaner it works great. but check the vacuum hoses and i doubt a leaky DV would do that. and if it was stuttering real bad then you might have a real bad misfire.
    yeah ill problee do the boost leak test, hopefully find out whats happening. how do i check if i have a bad misfire? because at some point when i was trying to go, it sounded like a mis fire.
    euroBREED
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  21. #21
    Veteran Member Three Rings
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    Oct 25 2006
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    '98.5 A4 1.8tqm Sport, '01 MDX
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    Oxford, CT

    Re: Car shutting down...plz help!

    Sounds like a boost leak to me. When I did my FMIC, I kept blowing hoses off when I went for test runs and the car acted exactly like you described when I blew the hose off. The RPMs would go up and down and the car would barely run or just flat out die.

  22. #22
    Veteran Member Four Rings Militant-Grunt's Avatar
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    Re: Car shutting down...plz help!

    Quote Originally Posted by Ado View Post
    i would say that its your ecu. sorry.
    do u have a 2nd ecu or can somebody lend u one for a day or so
    I think its the ECU as well, sounds exactly like the same problem I had, would start, then turn off, crank and not turn on at all, eventually it would start again, run for a little then turn off again. GIAC could've messed up the solder, that or the ECU just plain failed, it happens.
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  23. #23
    Senior Member Three Rings b5power's Avatar
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    Jan 14 2007
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    B5 1.8T
    Location
    Las Vegas, NV

    Re: Car shutting down...plz help!

    Quote Originally Posted by Militant-Grunt View Post
    I think its the ECU as well, sounds exactly like the same problem I had, would start, then turn off, crank and not turn on at all, eventually it would start again, run for a little then turn off again. GIAC could've messed up the solder, that or the ECU just plain failed, it happens.
    just wondering if its possible by just lookin at the chip if it was soldered unproperly?

    But really i hope its not my ecu. : ( or even at that hope the ECU didnt fail on me. Im going to Home Depot today and makiing a boost leak tester...
    euroBREED
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  24. #24
    Veteran Member Four Rings Militant-Grunt's Avatar
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    05 Mini Cooper S
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    NYC

    Re: Car shutting down...plz help!

    Quote Originally Posted by b5power View Post
    just wondering if its possible by just lookin at the chip if it was soldered unproperly?

    But really i hope its not my ecu. : ( or even at that hope the ECU didnt fail on me. Im going to Home Depot today and makiing a boost leak tester...
    I couldn't tell, everything worked fine after I put in a stock ECU.
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  25. #25
    Senior Member Three Rings b5power's Avatar
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    Jan 14 2007
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    My Garage
    B5 1.8T
    Location
    Las Vegas, NV

    Re: Car shutting down...plz help!

    do you guys think if i send my ecu back to AWE TUNING, they'll do it free of charge?
    euroBREED
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  26. #26
    Established Member Two Rings Hugh Jass's Avatar
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    Sep 25 2006
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    C4 Avant.
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    Portland, OR

    Re: Car shutting down...plz help!

    http://www.audiworld.com/tech/int6.shtml

    Code 1.

    It will give you the code for your check engine light.

  27. #27
    Senior Member Three Rings b5power's Avatar
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    B5 1.8T
    Location
    Las Vegas, NV

    Re: Car shutting down...plz help!

    well i found a boost leak from a vacuum hose connecting to my 710n, so im guessin its the ECu : (, im going to ship it today. and hopefully that will solve my problem.
    euroBREED
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  28. #28
    Senior Member Three Rings b5power's Avatar
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    B5 1.8T
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    Las Vegas, NV

    Re: Car shutting down...plz help!

    Just Vag my car

    codes:
    PO300(random misfire)
    PO301(Cynlinder 1 misfire)
    PO303(Cynlinder 3 misfire)
    PO102(MAF Circuit Low Input)



    I just called AWE-Tuning, and they said non of those have to do with the ECU.
    Thay said it was either coilpacks and MAF, so ill go from there.

    Any suggestions? Thanks
    euroBREED
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  29. #29
    Registered Member Four Rings Zodiak's Avatar
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    Re: Car shutting down...plz help!

    swap the coil packs around to see which ones could be failing.

  30. #30
    Senior Member Three Rings b5power's Avatar
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    B5 1.8T
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    Las Vegas, NV

    Re: Car shutting down...plz help!

    Quote Originally Posted by Zodiak View Post
    swap the coil packs around to see which ones could be failing.
    Well the VAG displayed that it was 1 and 3 that are failing
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  31. #31
    Registered Member Two Rings B5-B_Broke's Avatar
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    FlORIDA

    Re: Car shutting down...plz help!

    Quote Originally Posted by b5power View Post
    yeah ill problee do the boost leak test, hopefully find out whats happening. how do i check if i have a bad misfire? because at some point when i was trying to go, it sounded like a mis fire.
    check your cel code and then play musical coil packs and see if it follows the coil pack and theres your misfire

  32. #32
    Senior Member Two Rings DTMGuy's Avatar
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    98.5 Audi A4 1.8T Quattro, 04 Nissan Armada
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    Re: Car shutting down...plz help!

    Quote Originally Posted by b5power View Post
    how did you know it was you MAF did you get a code?and did you clean the MAF or replace the MAF?
    see i didnt get a CEL at all.. my mechanic said it was my ECU but after doing some more test it turn out to be my MAF and had to be replaced.. and now the car runs way better



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