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p28 vs. p30

Discussion in 'HYBRID -> EG-EK / DC' started by 93cxhatch, Dec 7, 2004.

  1. 93cxhatch

    93cxhatch Senior Member

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    I have a b16a1 and I am trying to do the wiring I was wondering if the p28 and p30 ecus have the same pinouts??? Also If there are any differences in the two ecus?
     
  2. civiclxb16

    civiclxb16 Senior Member

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    same pinouts since they are both obd1 ecus the difference is the fuel mapping and the knock sensor which is meant for the dohc the p28 is for a sohc vtec and the p30 is for the dohc vtec
     
  3. qtmac_mien

    qtmac_mien Senior Member

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  4. pissedoffsol

    pissedoffsol RETIRED

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    we have similar diagrams and pintouts here.

    http://www.hondaswap.com/forums/index.php?showtopic=29360


    p30 and p28 are identical pinouts. the p30 has 1 extra, for the knock.

    if you can, run the p30. it will give you much better fuel map, correct vtec activation points, and was frnakly, designed for that motor.
     
  5. BrowNKiD

    BrowNKiD Member

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    does the same thing apply for a b18c5 motor...cause im running a p28... and it works fine... but does the p30 give more hp?
     
  6. Slammed90Lude

    Slammed90Lude Senior Member

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    you're running an unchipped P28? ideally, if it's an OBD 2 car you should be running a P73

    otherwise, you're losing power on a stock P28
     
  7. chicken

    chicken Senior Member

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    its an obd1 car.. run the p30..
     
  8. Slammed90Lude

    Slammed90Lude Senior Member

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    :werd:

    i was owned by not reading the topic title :p
     
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