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89 civic hatch back engine swap question

Discussion in 'Civic and CRX - EF' started by TravisCadello, Aug 7, 2008.

  1. TravisCadello

    TravisCadello Banned

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    Ok, I took out the stock D15B2 Carbureted engine, and in with the D15B7 Fuel Injected Engine but i know I'm gonna have to change the whole entire engine wire harness for a whole another one correct? i have the 1993 civic ecu for the motor but where could i find the wire harness at??? am i gonna have to pull one from the junk yard or what??? the motor is in right now but nothing is connected only the engine mounts. plz notify me of anything else i need to change out to do this complete motor swap. Thanks!:confused:
     
  2. |Chaz|

    |Chaz| Well-Known Member VIP

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    Bahahaha, sorry I have to laugh because I find it funny that you didn't research how to wire it up before you actually took the time to put it in.

    I would actually be helpful, but I don't know shit about EFs. I wish you luck with getting it running though.
     
  3. TravisCadello

    TravisCadello Banned

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    Well it was actually my brothers hatch and he just bought this motor new and the ecu and gave up on it and i gave him 500 for it now i just dropped the motor in and left it like that til i check out a junk yard Friday still not too sure what kind of harness to look for that's why I'm asking.
     
  4. Justin91civic

    Justin91civic New Member

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    Ok if you are sure that it was a carb equiped car instead of a DPFI car. The dpfi looks like a carb at first but there is fuel injectors that are there. If it is a carb I myself would not know on how to go thru with that swap because the wiring on a carb based car vs. a Fuel injected car is completely different. Know if it was Dpfi then you will have to use that cars original engine harness and first convert it over to mpfi. There is a great write-up that I have used and it is in the reference section. Second since the d15b7 was a obd-1 engine then you will have to get a obd-0 to obd-1 conversion harness for the distributor and the ecu side of the harness. There are several companies that make those harness but Rywire is the one that most people use.
     
  5. TravisCadello

    TravisCadello Banned

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    Can i just pull an entire harness from a obd1 car out of the junk yard and run it from my new ecu all the way to all the sensors on the motor??? and that harness will work with my old distributor from the D15B2?

    the old motor was half carburated and had 2 injectors so its half and half i guess.
     
  6. prpprimo

    prpprimo Hondaholic

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    HAHAHA..half and half...One thing honda never did was half ass. Coincidently, your topic is recent info for my self. For starters 88-91 civics are obd-0. A d15b7 is non vtec so you should be set with a conversion harness.(no subharness required)(obd-0 to obd-1) dpfi to mpfi. They are 114 bux shipped from www.rywire.com . You could try and pull an entire 0bd-1 harness from a junk yard, but like most people and myself, you will quickly change your mind once you find out you have to rewire just about everything behind your dash also. (neck cramp):eek:That is why these wire harness companies are getting rich. ;) No, an obd-1 harness will not work with your old distributor.

    Most any 89 civic I have seen is dpfi, and so is yours.
     
  7. 1sikef

    1sikef New Member

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    My Friend Has A B7 In His Hatch, All We Did Is Convert From Multi Point INstead Of Dual Point Theres Millions Of Write Ups On It And Its Simple And You Dont Need A New Harness Just A Few Plugs, And I Would Just Get A PM6 Ecu Which Come Out Of CRX/EF Si's Easy To Find And Thats It
     
  8. George777

    George777 ^^ Likes Bewbies

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    The B2 is not carb'd. It has two injectors--One of the connectors is green, the other is brown.
     
  9. |Chaz|

    |Chaz| Well-Known Member VIP

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    WTF is a B7?
     
  10. TravisCadello

    TravisCadello Banned

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    What parts do i need to finish off the wiring on this car???? just a injector resistor box or what?
     
    Last edited: Aug 10, 2008
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