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Changed the intake manifold gasket on my 95 talon tsi and it won’t start after, HELP

Posted by TreWebbDSM, May 25, 2020

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  1. TreWebbDSM

    TreWebbDSM Probationary Member

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    So I swapped the intake manifold gasket out, copper sprayed the gasket itself, the egr gasket, and the throttle body gasket. I put everything back together on the car and it will crank but not start for over a second. I left my food floored on the throttle and it still would sputter and die and I have no clue what could’ve gone wrong
     
  2. TreWebbDSM

    TreWebbDSM Probationary Member

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    My mods are 750cc injectors, 14b, walbro 255, vrsf fmic, egr vac lines blocked off, Halman mbc, ngoni bpr6es, ecmlink v3
     
  3. TreWebbDSM

    TreWebbDSM Probationary Member

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    It also ran and I daily drove it before this happened but it did have a leak at the intake
     
  4. Sjd6795

    Sjd6795 Proven Member

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    Well if you copper sprayed everything you could've got it where it doesnt belong. And also there isnt any reason as to why you would need to put copper spray on your gaskets especially on the intake manifold. Brand new gaskets and making sure the surface is clean then following torque should seal it off.

    How long did you wait before starting the car after getting it all back together? The sealant needs time to setup, also is every sensor and vacuum lines connected back correctly? Do a boost leak test to make sure there is no leaks.
     

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  5. TK's9d2TSi

    TK's9d2TSi Supporting Member

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    Check your work and make sure all connectors are secure. Check firing order for plugs too. Has to be something simple
     

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  6. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    CTS come unplugged??
     

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  7. miguelmcv

    miguelmcv Supporting Member

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    Post some pics of the areas where you worked, some time we can catch something in the pic that you can’t.
     

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  8. TreWebbDSM

    TreWebbDSM Probationary Member

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    Okay, the car is at my friends shop about 30 minutes away. I’m gonna run by there today and see what I can do and I can post up some pics on here
     
  9. TreWebbDSM

    TreWebbDSM Probationary Member

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    I waited an hour or two to start it back up but they were pretty much dry before I put them on
     
  10. TreWebbDSM

    TreWebbDSM Probationary Member

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    Plugs are all 4 wet and everything seems to be plugged in but this
     

    Attached Files:

  11. TreWebbDSM

    TreWebbDSM Probationary Member

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    Attached Files:

  12. miguelmcv

    miguelmcv Supporting Member

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    Take pics of the complete area not just the connectors. We want to see the engine bay and sensors all around to see if we can catch something.
     

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  13. miguelmcv

    miguelmcv Supporting Member

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    What car are you working on (1g a/b, 2g a/b )?

    In a 2g there are 2 triangle connectors, a crank and a the AC compressor connector which they both can be plugged to each other, make sure you didn’t connect the crank to the ac compressor, otherwise it will never start.
     

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  14. TreWebbDSM

    TreWebbDSM Probationary Member

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    Not sure how good the pictures came out but I tried to get most angles of it, I can take off the intercooler piping to clear up some space. The plug wires aren’t connected im just covering the plug holes because I’m going to do a compression test in a few
     

    Attached Files:

  15. TreWebbDSM

    TreWebbDSM Probationary Member

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    2ga
     
  16. TreWebbDSM

    TreWebbDSM Probationary Member

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    Where are those connectors located
     
  17. TK's9d2TSi

    TK's9d2TSi Supporting Member

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    4 1 2 3

    51040CF1-7EFE-4D89-B25C-9A4148441552.png
     

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  18. TreWebbDSM

    TreWebbDSM Probationary Member

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  19. miguelmcv

    miguelmcv Supporting Member

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    They are at the right side of the head.

    Check the ac compressor connector and the crank connector they both are identical so check you have the right one connected to the crank sensor.
     

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  20. TreWebbDSM

    TreWebbDSM Probationary Member

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    Than
    Thanks I’ll give it a look
     
  21. motomattx

    motomattx Proven Member

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    It looks like you have number 3 spark plug wire on number four cylinder.
     

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  22. TreWebbDSM

    TreWebbDSM Probationary Member

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    The plugs aren’t in it currently, I just have the plug wires in the spark plug holes so nothing goes in the motor
     
  23. ryan_c2g

    ryan_c2g Probationary Member

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    Have you checked your transistor? Make sure it's plugged in properly, check your connections too in case you or someone else didn't pull on the pins from them, probably not making contact with a sensor. Also, as stated above, the "triangle" connections, I had that happen to my self before, swapped them and didn't turn on. Double check
     

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  24. TreWebbDSM

    TreWebbDSM Probationary Member

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    I’ll check again on Thursday when I go mess with it, and I put a new transistor in 3 weeks ago
     
  25. TreWebbDSM

    TreWebbDSM Probationary Member

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    Also after I changed the gasket it started and there was a terrible noise so I shut it off for a few minutes and turned it back on, it idled steady til it was warm but when I went to rev it and check the throttle response it just misfired and shut off. That’s when it never really started again
     

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