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Thread: Vaccum Box

  1. #76
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    Re: Vaccum Box

    well i'm glad that my curiosity solved the problem of the vacuum box for the PGM-FI motors...much thanks to those who contributed
    1987 Honda Accord LX-i (A20A3) (179k)
    79-whp, 103-wtq (Performance Solutions)

    "...if you type, 'Google' into Google you'll break the internet..."



  2. #77
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    Re: Vaccum Box

    Quote Originally Posted by turabaka View Post
    well it's still below 40 all day here in Idaho. in fact I think it's just barely hit 41 at my house.
    oh, well then... i guess thats why lol

    Quote Originally Posted by CAH View Post
    pullin up turbo spoolin fast lookin fly like a 3g like a 3g like a 3g

  3. #78
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    Re: Vaccum Box

    yeah, i think the warmest it has gotten where i'm at is maybe 50-somethin'...and that was for one day.
    1987 Honda Accord LX-i (A20A3) (179k)
    79-whp, 103-wtq (Performance Solutions)

    "...if you type, 'Google' into Google you'll break the internet..."

  4. #79

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    Re: Vaccum Box

    Can has problem:



    This is where I'm at. Car runs fine, but I get a CEL a couple minutes after it warms up. Nothing happens, car still runs normal, but I get a code 12 (EGR). I have the port on the EGR valve plugged. Do I need to plug something back in or will it keep doing this until I block the EGR off?

  5. #80
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    Re: Vaccum Box

    I'm confused mine doesn't have any sensor on the thermostat housing.does anyone have any better pics,these are a little hard to follow.whitch is the better way to do this.

  6. #81

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    Re: Vaccum Box

    These?



    I did this yesterday and had Rendon and 89sei89dx's pictures all printed out, but honestly all I could get from them was theory. Rendon's walkthrough was for an 86 so my lines were all numbered differently, stuff was in different places etc. The best way, in my opinion, to go about this is to:

    1) Take tons of pictures of the stock setup, make sure you know how to put everything back if you mess up
    2) Unplug everything
    3) Take the black box completely out of the car
    4) Remove all the old lines including the hard lines by the injectors
    5) Plug all of the open ports on the IM, EGR, and wherever else
    6) Put the ICM and MAP sensor back in and run all-new lines

    I spent like two hours just poking around trying to figure out the safest way to do it, but after I got impatient and just started ripping stuff out it went pretty easily.

    Last edited by Joay; 06-07-2009 at 05:04 PM.

  7. #82
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    Re: Vaccum Box

    Do you have any pics of yours,mine's an 88.

  8. #83
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    Re: Vaccum Box

    What about vacumn thing on drivers side of intake with the arm on it.where do that get vacumn from or doesn't it need to be hooked up.

  9. #84

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    Re: Vaccum Box

    Not sure what arm you're referring to, but here's a map of what I have now:



    Also, for posterity:

    Quote Originally Posted by My dumb ass View Post
    This is where I'm at. Car runs fine, but I get a CEL a couple minutes after it warms up. Nothing happens, car still runs normal, but I get a code 12 (EGR). I have the port on the EGR valve plugged. Do I need to plug something back in or will it keep doing this until I block the EGR off?
    I fixed this by jumping the two outside wires on the EGR plug (one hot wire and the ground). The car no longer throws a code and the light has stayed off so far. Thanks to turabaka for the idea.
    Last edited by Joay; 06-07-2009 at 03:59 PM.

  10. #85
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    Re: Vaccum Box

    Quote Originally Posted by Joay View Post
    These?



    I did this yesterday and had Rendon and 89sei89dx's pictures all printed out, but honestly all I could get from them was theory. Rendon's walkthrough was for an 86 so my lines were all numbered differently, stuff was in different places etc. The best way, in my opinion, to go about this is to:

    1) Take tons of pictures of the stock setup, make sure you know how to put everything back if you mess up
    2) Unplug everything
    3) Take the black box completely out of the car
    5) Remove all the old lines including the hard lines by the injectors
    4) Plug all of the open ports on the IM, EGR, and wherever else
    5) Put the ICM and MAP sensorsback in and run all-new lines

    I spent like two hours just poking around trying to figure out the safest way to do it, but after I got impatient and just started ripping stuff out it went pretty easily.

    that looks win!!! now paint the valve cover and wash the engine bay

    1988 Honda Accord LX-i Coupe 123k miles.

  11. #86
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    Re: Vaccum Box

    glad the EGR thing worked out for ya.
    Lostforawhile:we have to pick on him he's CAH he spray painted himself into this corner with the accord.

  12. #87

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    Re: Vaccum Box

    Well it didn't quite work... car kinda doesn't want to start without that plug in but now I know basically how I have to rig it up.

    Quote Originally Posted by Civic Accord Honda View Post
    that looks win!!! now paint the valve cover and wash the engine bay
    Oh yeah, my bay is nasty... you can't see it but there's blood all over the place in there from last night

  13. #88
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    Re: Vaccum Box

    What about the thing by the fpr,the vacumn went to a steel line whitch is no longer there.where does it go to.

  14. #89
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    Re: Vaccum Box

    Quote Originally Posted by Joay View Post

    Oh yeah, my bay is nasty... you can't see it but there's blood all over the place in there from last night
    haha yeah mine allways get bloody too

    1988 Honda Accord LX-i Coupe 123k miles.

  15. #90

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    Re: Vaccum Box

    Quote Originally Posted by import racer View Post
    What about the thing by the fpr,the vacumn went to a steel line whitch is no longer there.where does it go to.
    The thing like two inches in front of the fpr? Kind of disc-shaped with a nipple coming off the front of it? I believe that's for the A/C idle boost, but I have it capped off and my A/C still works fine.

  16. #91
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    Re: Vaccum Box

    The vacumn pull off on the end of intake,i think it opens a flap in the intake.

  17. #92
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    Re: Vaccum Box

    its wierd when you unplug the egr the car wont start. idk if is part of the circiut or something....


    200+ ALL MOTOR LS VTEC

  18. #93
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    Re: Vaccum Box

    mine started without it :S

    1988 Honda Accord LX-i Coupe 123k miles.

  19. #94

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    Re: Vaccum Box

    My theory is that it needs a different voltage when it's running than when it starts, because I can unplug it once it starts without jumping it or anything and it runs fine.

  20. #95
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    Re: Vaccum Box

    i have my egr unplugged and it starts fine if its cold. but hot starts take a few seconds(like 7-8 secs of cranking)

    Joay is right about going about this tho. I pulled everything out, then ran what i needed.

    I need to go back over everything and hide the lines better. Ill make a diagram showing how everything is hooked up soon.

    Quote Originally Posted by CAH View Post
    pullin up turbo spoolin fast lookin fly like a 3g like a 3g like a 3g

  21. #96

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    Re: Vaccum Box

    I can get it to start without the EGR plugged in, but it trips the CEL. The problem is that if I jump the wires on the plug (5V when the car's on and/or running) the CEL goes away but it won't start. I did some research and apparently most people just block the EGR off, then put the valve back on top of the plate and run the vacuum and plug.

  22. #97
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    Re: Vaccum Box

    There is vacumn on the egr?didn't see any hose going to it.

  23. #98

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    Re: Vaccum Box

    It's supposed to have a vacuum hose, yours may have been taken off at some point. Even if the hose isn't there the nipple is visible, comes off the front-left side of the valve as you're looking at the engine.

  24. #99
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    Re: Vaccum Box

    Quote Originally Posted by Joay View Post
    I can get it to start without the EGR plugged in, but it trips the CEL. The problem is that if I jump the wires on the plug (5V when the car's on and/or running) the CEL goes away but it won't start. I did some research and apparently most people just block the EGR off, then put the valve back on top of the plate and run the vacuum and plug.
    cel ftw tho u get that awesome safe mode tune were the car starts dumping petrol out the exhuast

    1988 Honda Accord LX-i Coupe 123k miles.

  25. #100
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    Re: Vaccum Box

    Anyone know what the little vacumn can on the firewall is for?It's right next to the charcoal canister.
    Last edited by import racer; 06-10-2009 at 05:58 PM.

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