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Thread: wire harness info needed?!?!

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  1. 12-30-2009, 01:28 AM #1
    B20Civic92
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    Default wire harness info needed?!?!

    im doing the b20 vtec build and all i need to do now is install the wire harness, i have a b16 head and b16 harness, but when i looked to take the other one out, i noticed the it runs from the ecu and half of the wires go through the fire wall and the other half goes under the dash so i was wondering exactly what do i do about it??
    any help would appriciated :boobies:
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  2. 12-30-2009, 01:38 AM #2
    dirty-rice
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    what kind of car and what year.....and that obd code r u swapping to?
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  3. 12-30-2009, 01:43 AM #3
    B20Civic92
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    92 civic hatchback and it had b20 in it first (p75) so im guessin it was obd1 and its got a b16a head (pr3-3) so obd1 (i think?)
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  4. 12-30-2009, 10:47 AM #4
    hondalover00
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    is this ray? if so text me and ill come and take a look for you and see whats up
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  5. 12-30-2009, 10:55 AM #5
    PURP
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    If the harness for the B16 is obd1 then it should be plug and play. Now... your car being a 92, it is already prewired for vtec from honda. All 92 models were done this way.

    But like I said, if everything from the main engine harness to your ECU harness is obd1, it is supposed to just plug right in. 2 plugs on the driver side. 1 big and 1 small 2 wire for ignition. Passenger side should have 3 with a 4th that is a dead end for the grounds(yellow wires).

    hope that helps
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  6. 12-30-2009, 11:07 AM #6
    southside
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    Quote Originally Posted by PURP View Post
    If the harness for the B16 is obd1 then it should be plug and play. Now... your car being a 92, it is already prewired for vtec from honda. All 92 models were done this way.

    But like I said, if everything from the main engine harness to your ECU harness is obd1, it is supposed to just plug right in. 2 plugs on the driver side. 1 big and 1 small 2 wire for ignition. Passenger side should have 3 with a 4th that is a dead end for the grounds(yellow wires).

    hope that helps
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  7. 12-30-2009, 01:05 PM #7
    B20Civic92
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    No this is not Ray lol but yeah that's what I thought about the just plug and play but it's nothing like that at all lol I feel like I have to rewire the whole car and I kno I shouldn't have to
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  8. 12-30-2009, 01:12 PM #8
    punkr6
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    has the car ever been swapped before ?
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  9. 12-31-2009, 01:00 PM #9
    B20Civic92
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    yeah it has, i bought it with a b20 in it
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  10. 12-31-2009, 04:25 PM #10
    95droppedhatch
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    does you harness go all the way to the ecu with no plugs inbetween the motor and ecu if so you have a obd2 harness not a obd1 cause a obd1 have plugs on the motor harness that plug on the strut towars on each side does go all the way to the computer as a complete on piece harness
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  11. 12-31-2009, 04:31 PM #11
    punkr6
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    Quote Originally Posted by 95droppedhatch View Post
    does you harness go all the way to the ecu with no plugs inbetween the motor and ecu if so you have a obd2 harness not a obd1 cause a obd1 have plugs on the motor harness that plug on the strut towars on each side does go all the way to the computer as a complete on piece harness
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  12. 01-02-2010, 01:17 AM #12
    B20Civic92
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    Well shit lol I was goin by what I was told cuz I'm still kinda new to the hondas so if it was obd2 then how do I make it obd1?
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