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87 crx si w/ dohc zc problem !

Discussion in 'HYBRID -> ED-EF / DA' started by dilbeckskate, Jan 26, 2012.

  1. dilbeckskate

    dilbeckskate infamous

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    title says all, it idles fine, but wont rev past 1500 rpm ? any ideas ?
     
  2. bluejcivic

    bluejcivic New Member

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    is it hitting a fuel or spark cut off or bogging out? what dizzy are you using?
     
  3. dilbeckskate

    dilbeckskate infamous

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  4. jlicrx

    jlicrx Senior Member

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    the engine in the picture is from 88-91 car which used electronic advance ignition system - your 87 Si used a vacuum advance ignition system

    did you modify the wiring so that you could run the electronic advance?

    what ECU do you have? - you would need an ECU that is compatible with the electronic advance, like 88-89 Integra PG7 - you can't use the 86-87 Integra PG7 as it was also for vacuum advance ignition
     
    Last edited: Jan 27, 2012
  5. dilbeckskate

    dilbeckskate infamous

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    car was swapped when I bought it , $900 owner didnt know it was swapped, drove it all day and when you cranked it it would only rev to 1500 rpm , replaced the iacv, ecu, and dizzy now it only rev's to 3k... any ideas ?
     
  6. dilbeckskate

    dilbeckskate infamous

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    car was swapped when I bought it , $900 owner didnt know it was swapped, drove it all day and when you cranked it it would only rev to 1500 rpm , replaced the iacv, ecu, and dizzy now it only rev's to 3k... any ideas ? its literally like a rev limiter
    [​IMG]
     
  7. Matts96HB

    Matts96HB . Moderator VIP

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    Which ECU is in the car?
     
  8. dilbeckskate

    dilbeckskate infamous

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    pm7, it only throws the IACV code and Ive replaced it 2ce with known good ones, changed the dizzy, ecu, re-wired the iacv, still same shit 3k
     
  9. jlicrx

    jlicrx Senior Member

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    not revving beyond 3k is usually a problem with the crank sensor in the distributor - either a bad distributor or something wrong with the wiring for the crank sensor - crank sensor code is 4 - are you sure you are counting the flashes correctly for the codes? does the ECU flash 14 times for the EACV? OBD0 D-series ECUs, like the PM7, only have short flashes, not long and short like the OBD0 B-series ECUs - if you are seeing one flash, pause, and then 4 flashes, you have codes 1 for O2 sensor and 4 for crank sensor, not 14 for EACV

    [​IMG]
     
    Last edited: Jan 29, 2012
  10. Brejkan

    Brejkan New Member

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    is the wires 2 the crankshaft switched ??
     
  11. Brejkan

    Brejkan New Member

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    if its a swap, depending on witch eng it was before u need 2 switch the crankshaft cables
     
  12. dilbeckskate

    dilbeckskate infamous

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    i fixed it, the +12v wire for the iacv had a short in it, progress cleaning up the engine bay today
    [​IMG]

    intake I threw together with stuff laying around
    [​IMG]
     
  13. TurboMirage

    TurboMirage YEEAAAHHH VIP

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    noice, i bet that is fun as fuck.
     
  14. Matts96HB

    Matts96HB . Moderator VIP

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    I thought you were done with Hondas?
     
  15. dilbeckskate

    dilbeckskate infamous

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    it is fun as fuck lol and the price was right and its a blast to drive, heres more pics
    [​IMG]
    [​IMG]
     
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