1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Dual point to multi point question

Discussion in 'Civic and CRX - EF' started by rollagtsracer, Jan 24, 2007.

  1. rollagtsracer

    rollagtsracer New Member

    Messages:
    20
    Likes Received:
    0
    Joined:
    Jan 19, 2007
    Location:
    murfreesboro, tennessee
    so i have a 89 ef hatch with the d15b2 and i went from dual point injection to multi point injection and it runs funny and sounds like a lawnmower i was wondering i swapped ecu's and did the right wiring the only thing i didnt do was swap the fuel pump could that have anything to do with it?
     
  2. 801CRX

    801CRX Got Rice?

    Messages:
    1,347
    Likes Received:
    12
    Joined:
    Dec 2, 2006
    Location:
    UTAH
    Deffinatly!

    Get the crx hf or si fuel pump
     
  3. rollagtsracer

    rollagtsracer New Member

    Messages:
    20
    Likes Received:
    0
    Joined:
    Jan 19, 2007
    Location:
    murfreesboro, tennessee
    thanks this dumbass told me it would be fine with the original cause the ecu would tell the fuel pump to supply more fuel but obviously he was wrong
     
  4. 801CRX

    801CRX Got Rice?

    Messages:
    1,347
    Likes Received:
    12
    Joined:
    Dec 2, 2006
    Location:
    UTAH
    The fuel pump only supplies as much as its supposed to. Once you reach the fuel pumps max velocity it wont provide anymore fuel. No matter what the ECU is telling it to do.
     
  5. rollagtsracer

    rollagtsracer New Member

    Messages:
    20
    Likes Received:
    0
    Joined:
    Jan 19, 2007
    Location:
    murfreesboro, tennessee
    i wish i would have found this forum before i did i got the multi point off of a d16 crx i have so im gonna go take the fuel pump off any idea on how long that will take to swap out?
     
  6. rollagtsracer

    rollagtsracer New Member

    Messages:
    20
    Likes Received:
    0
    Joined:
    Jan 19, 2007
    Location:
    murfreesboro, tennessee
    another question... how do you think the d15b2 would handle boost?
     
  7. rollagtsracer

    rollagtsracer New Member

    Messages:
    20
    Likes Received:
    0
    Joined:
    Jan 19, 2007
    Location:
    murfreesboro, tennessee
    does any body know if the crx fuel pump will plug right into the ef hatch it a zc fuel pump
     
  8. rexaddict

    rexaddict turbo ex

    Messages:
    42
    Likes Received:
    0
    Joined:
    Dec 23, 2006
    Location:
    olympia wa
    it sould take about an hour to take the pump out of the tank
    and an hout to put it in
    just be carfull.patient and do it rite
     
  9. Reckone

    Reckone EF aholic

    Messages:
    190
    Likes Received:
    0
    Joined:
    Jan 27, 2007
    Location:
    Albany, NY
    The fuel pump wouldn't make a difference, there the same. I have done many mpfi swaps and never had a fuel pump be a problem.
     
  10. 97hatch

    97hatch ?

    Messages:
    1,695
    Likes Received:
    20
    Joined:
    Feb 6, 2003
    Location:
    Anderson IN
    check your injector and dizzy wiring its not the fuel pump



    jeez i hate stupid people:angry:
     
  11. hfrida

    hfrida New Member

    Messages:
    33
    Likes Received:
    0
    Joined:
    Jan 27, 2007
    did you kept ur dual port dizzy
     
  12. Reckone

    Reckone EF aholic

    Messages:
    190
    Likes Received:
    0
    Joined:
    Jan 27, 2007
    Location:
    Albany, NY
    Just a thought, but did you happen to replace the intake gasket for a new one? If you leak coolant into the cylinder it will make it run like a bag of ass.
     
  13. 97hatch

    97hatch ?

    Messages:
    1,695
    Likes Received:
    20
    Joined:
    Feb 6, 2003
    Location:
    Anderson IN
    no you cant keep the dualpoint dizzy why are people so stupid and give out false info a dpfi to mpfi swap should only take a brother about 2 hr max and that is doing it right do your research and if you dont know what you are talking about from first hand experience SHUTUP:chair:
     
    Last edited: Jan 28, 2007
Verification:
Draft saved Draft deleted

Share This Page