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I need someone who knows something about a 91 civic jdm

Discussion in 'Civic and CRX - EF' started by intheearlyhours, Oct 7, 2009.

  1. intheearlyhours

    intheearlyhours New Member

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    Ok please read all of this before you post reply.

    Ok i have a 1991 Honda Civic (not CRX) Jdm Z/C DOHC. My problem is that when i have the number 1 cylinder plugged in as i should it backfires through what sounds like the exhaust manifold. I have replaced the Dizzy about 6 months ago i have new plugs and wires, i checked the timing 3 times (ITS RIGHT). Someone once told me it could be a number 1 cylinder sensor or something, but than someone else said that they NEVER go bad. When i unplug the injector or just pull the wire from the number 1 cylinder it does not backfire just runs slow. and heres the thing. If i run it on 3 cylinders for about 2 days and than plug the number 1 back in it wont backfire for about 2 hours of driving. Please Please Please help me im so sick of this car right now.

    Hit me up on my email also brandonniblock@yahoo.com or my AIM- mrbangbangsir



    p.s. this is not a new swap i have been driving it for about a year or longer
     
    Last edited: Oct 7, 2009
  2. jlicrx

    jlicrx Senior Member

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    did this problem start when you changed plugs and wires? what kind of plugs and wires do you have? anything other than NGK plugs and OEM wires will cause problems
     
  3. intheearlyhours

    intheearlyhours New Member

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    i changed the plugs and wires thinking it would fix the problem. So its not the plugs
     
  4. jlicrx

    jlicrx Senior Member

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    have you checked the fuel injector on the number 1 cylinder? unplug the connector - set the ohm meter to the lowest setting (200?) - measure resistance between the 2 terminals on the injector itself - should be 1.5 to 2.5 ohms - if not, the injector is bad
     
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  5. intheearlyhours

    intheearlyhours New Member

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    Ok i did it with the car off and it did nothing and with the car on i got anywhere from 2.0 up tp 4.0 on the setting of 200OHMs
     
    Last edited: Oct 7, 2009
  6. intheearlyhours

    intheearlyhours New Member

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    Wait when you say the injector itself do you mean the plug that i pull out of it or something else??? i tested the plug
     
  7. INJEN78

    INJEN78 HS LEGEND

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    you test power coming from the plug..and it sounds to me like your is F-ed up.
    dumping too much fuel into cylinder 1...
     
  8. intheearlyhours

    intheearlyhours New Member

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    Ok can you guys do me a favor and find how to check the injector from like amanual
     
  9. jlicrx

    jlicrx Senior Member

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  10. intheearlyhours

    intheearlyhours New Member

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    i really dont think its the injector
     
  11. intheearlyhours

    intheearlyhours New Member

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    my check engine never comes on but my ECU flashes code 9 and thats it
     
  12. intheearlyhours

    intheearlyhours New Member

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  13. RoughKnight

    RoughKnight Christmas Car

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    CYP Sensor. Open up your dizzy. The sensor is inside your distributor. try probing pin b11 to the orange wire on the distributor and pin b12 to the white wire on your distributor. if it has continuity your fine this will just make sure the wiring is in good shape. if it isnt fix the wiring otherwise you will need a new distributor
     
  14. jlicrx

    jlicrx Senior Member

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  15. RoughKnight

    RoughKnight Christmas Car

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    ^ thanks for correcting me!
     
  16. intheearlyhours

    intheearlyhours New Member

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    Lol ok give me something else guys
     
  17. INJEN78

    INJEN78 HS LEGEND

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    did you check the injector?
     
  18. intheearlyhours

    intheearlyhours New Member

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    not yet it really doesnt make sense for it to be that. or does it? I mean the problem i have is backfiring with number 1 cyl on. I also need to buy a new ohm reader mine broke.
     
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