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Put a b18a into a '91 crx rev problems

Discussion in 'HYBRID -> ED-EF / DA' started by newbie2imports, Mar 9, 2006.

  1. newbie2imports

    newbie2imports Junior Member

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    Okay, for starters I put a '91 integra ls b18 into a '91 crx HF that had a D155 (something like that). Tried b18 engine harness and running wires and making a mess and digging into wiring diagrams to make it run, and got no where. So just for giggles, I put the old D155 harness on with its computer and the B18 runs and idles fine, until you go to drive it and @ 3100-3200 rpm it stutters like a rev limiter or stutter box would.
    Anybody have any suggestions? [​IMG]
     
  2. racintweek

    racintweek Senior Member

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    sounds like a bad coil/ignitor, not the wiring.
     
  3. jlicrx

    jlicrx Senior Member

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    probably the HF ECU - get the PR4 OBD0 ECU
     
  4. formby

    formby learning in progress

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    i have a virgin one $25+shp
     
  5. newbie2imports

    newbie2imports Junior Member

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    What model would the PR4 OBDO come out of? I have the Interga LS computer. If I plug it in it really runs like crap.
     
  6. newbie2imports

    newbie2imports Junior Member

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  7. MugenCRX

    MugenCRX Senior Member

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    Yes, you need the Integra's ECU. I would verify that the ECU actually came out of a 91 Integra, and not a 92-93. Because that would make it an OBD-1 ECU, and you need an OBD-0.
     
  8. pauls81sc

    pauls81sc Member

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    Here's a good list I'd found on ECU part numbers and how they correlate to models and years.

    http://www.xenocron.com/downloads/ECU-codes.xls
     
  9. newbie2imports

    newbie2imports Junior Member

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    Yeah, I'm positive I have the computer from a '91 Integra. I also have the full engine harness, but I don't have enough wires on the crx chassis harness to splice it in. I have the hf harness on the b18 now. The hf computer has the rev problem and the integra computer plugged in to the hf harness makes a bad miss fire at any rpm.
     
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