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b18a1 swap

Discussion in 'Civic and CRX - EF' started by celicaboy1984, Oct 5, 2007.

  1. celicaboy1984

    celicaboy1984 New Member

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    just wanted some info on a few things im swaping a b18a1 into my 90 civic si ..I noo i can use my wiring harness and use b18 computer obd0 and i got the hasport mounts and shift linkage taken care of...but was wondering about the map sensor do i use the one out of the integra? and the same with the alternator? what one do i use.. thanks for any help :)
     
  2. drummingpariah

    drummingpariah Author of the Madness Man

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    The Integra alternator is attached to the motor, not the car. Use that alternator. If you're using your si wiring harness, you'll want to stick to the si map sensor. It's not ideal, but it'll work and it's plug-and-play.
     
  3. celicaboy1984

    celicaboy1984 New Member

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    thanx i no the alternators attached to the motor i build motors but new a t honda swaps...i used the b18 map sensor and it works good stioll pluged in...any reason you say to use the si one? i heard i will run lean if you do cuz its got less flow ratefrom the injectors
     
  4. drummingpariah

    drummingpariah Author of the Madness Man

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    I suppose that depends on the injectors. I went with the pm6 because the ecu is worlds more tunable, and the map sensor is simpler. The pr4 is picky about what you can change, pgmfi-wise.
     
  5. drummingpariah

    drummingpariah Author of the Madness Man

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    Any update on your project? Good/bad/ugly/pretty?
     
  6. AaronH

    AaronH New Member

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    Hey I just helped my buddy put a b18a1 in his 90 crx, everything went good but we are throwing a code 13 and I cant find any info on how to fix it, can you help me
     
  7. Briansol

    Briansol Admins Admin VIP

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    This thread is from 2008.... probably not going to get much out of the OP.

    What ecu are you using?
    What obd did you end up at?
     
  8. jlicrx

    jlicrx Senior Member

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    is the car
    the barometric pressure sensor is in the ECU for the B18A1 engines - try a different ECU

    could also be a problem with the wiring and the code 13 is just a result of the ECU trying to find a possible solution - may not be the problem at all
     
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