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F22 To H22a

Discussion in 'HYBRID -> BA-BB /CA-CD' started by gleuen034, Apr 29, 2003.

  1. gleuen034

    gleuen034 Junior Member

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    I was just wondering if it was possible to take an H22A motor from a gen. 4 Prelude and put it into my gen. 4 Prelude S. What all would this entail, I have heard that it is just different wiring, and i found the wiring diagrams. Thanks for the help.
     
  2. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    This has been asked a few times before here, search the Prelude/Accord forum for the details. If you have any specific questions, post them up.
     
  3. gleuen034

    gleuen034 Junior Member

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    I have searched quite a bit and i havent been able to find anything on my specific swap, i would take the link to these questions if you can find it, but i cant, I just want to know some of the general things i need to know so that i can get started.
     
  4. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    It would be the same as any question like "How do I put an H22 into my 92-96 Prelude/92-96 Accord". They're all more or less the same chassis.

    Also check the "What Should I Swap" forum.
     
  5. gleuen034

    gleuen034 Junior Member

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    Ok, I still can't find anything, any help that anyone has to offer would be greatly appreciated, either with what i have to change or where i can find past posts. Thanks
     
  6. MPetro

    MPetro Member

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    be specific and anyone could help you
     
  7. gleuen034

    gleuen034 Junior Member

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    ok, I'll start off with my initial question...Can it be done? Second...Is the wiring and ECU the only things that have to be changed? If not, what else needs to be changed? Thanks for the help
     
  8. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    It should be hella simple. The H22 came in that chassis, so your mounts will line up. Either tranny will work. Same axles. You'll have to wire VTEC and a knock sensor up to your new ECU.

    Next questions?
     
  9. gleuen034

    gleuen034 Junior Member

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    alright, so thats basically it? Nothing else has to be changed? thanks, ill come back if i run into anymore problems.
     
  10. gleuen034

    gleuen034 Junior Member

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    ok, another couple of questions, which wires are different? and where can i find a knock sensor? thanks for the help
     
  11. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    There shouldn't be ANY different wires. The wiring harness should plug right in, assuming your OBD's match up.

    The knock sensor sits on the back of the block, kinda to the right of and below the oil filter. Should come with the engine.
     
  12. gleuen034

    gleuen034 Junior Member

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    alright, can i just buy a new chip or do i need to buy a whole new box? im talking about the ECU, I am unclear on wether i need the whole thing replaced, because i found a chip butr i was wondering if that would work.
     
  13. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    Get a new ECU, either a P13 or a P72. You COULD just chip it, but there's no telling how it's going to run when you do. Then, you'll be out the money for the chip AND a new ECU.
     
  14. gleuen034

    gleuen034 Junior Member

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    thanks, where can i find the pin-outs for the new ECU?
     
  15. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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  16. h22freshman

    h22freshman Senior Member

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    You will not wanna put a h22 in there...and then run the Prelude S tranny..that would be the stupidiest thing in the world...please don't ever do that...that is wasting ur ludes potential.....If ur going turbo maybe u could even swap the h23 tranny..but dont keep the s tranny..
     
  17. gleuen034

    gleuen034 Junior Member

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    Alright, ealrier you said that I did not need ANY different wires, but i need to hookup the knock sensor, so I do need more wires, are there any others that i should be watching for?
     
  18. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    Right, there aren't any wires that are different. You need to add new wires for VTEC and for a knock sensor.
     
  19. gleuen034

    gleuen034 Junior Member

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    so which wires do i need to add?
     
  20. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    The two VTEC wires and the knock sensor. VTEC oil pressure and VTEC solenoid. Check the pinout diagram.
     
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