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JDM h22 in 92 Prelude SI, but no vtec

Discussion in 'HYBRID -> BA-BB /CA-CD' started by spaceoddity, Jun 7, 2006.

  1. spaceoddity

    spaceoddity Junior Member

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    Jun 7, 2006
    So I have a 92 Prelude si h23, just got done swapping an h22. Kept my stock auto tranny. Wired up everything right, but haven't gotten rid of that external coil yet - it just dangles there. My shifter wouldn't come outta park and I don't know how to fix that (where to run wires), so I just use the key release. My problem is that vtec won't hit. At all. None. Nothing happens all the way to redline (which is still h23 redline) then when the tranny shifts, CEL 21 comes on. What the hell? I've checked and double checked my wiring, the solenoid, everything. Between the 4 best Honda guys in my town, we're all dumbfounded. Do I need a new tcu? I have the p14/p15 tcu now. Do I need the p19? I've heard mixed reviews on whether or not that tcu will even work.
  2. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    Apr 27, 2005
    Dallas, TX
    search for posts with the word "automatic" made by the member "tab"

    im sure hes answered the "how do i get outa park question" before.

    The old TCU wont shift at the right points (itll shift early) the P19 will shift at the right points. Id recommend getting the P19.
  3. tab

    tab Super Moderator

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    Jan 10, 2003
    Aberdeen, Washington State
    CEL 21 will tell you why VTEC isn't working.

    The TCU won't effect VTEC at all. A better description of what has been wired would help. Obviously, something simple was missed.;)
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