Question about 1992 Nissan 300ZX

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Cant locate the computer box for 300zx

I recently purchased a 1992 nissan 300zx se. we tried starting it up the starter is cranking and the fuel has alot of pressure. but when we checked the sparkplug it wasnt sparking so we are thinking it has something to do with the electrical plz i need a guide

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  • mark671 Dec 03, 2008

    i see... but what if the security light is on? will that effect the car getting started up. when we purchased it they didnt have the key so we bypassed it... when we did we tried starting it up and the starter is cranking the fuel injectors are working but the sparkplug isnt sparking.

  • Anonymous Feb 14, 2009

    my uncle owned the car and had it parked for years and never fixed it so when we were ready to pick up the car, he didn't have the key at the time so we just broke the ignition so we can pull it, now we have the key from him and tried to start and we are having the problem that was mentioned above

  • Jackson Hisey
    Jackson Hisey May 11, 2010

    The title of your help request is different from what you are asking. The ECM is located under the passenger side floorboard. Lift up the carpet and you will see a wooden panel. Remove the panel and you will have access to the ECM.

  • Jackson Hisey
    Jackson Hisey May 11, 2010

    Just to clarify, the sensor I am talking about is mounted in the front left of the engine on the timing belt cover.

  • Jackson Hisey
    Jackson Hisey May 11, 2010

    There is a sensor on the front left of the engine that is known to cause what you are describing. Try tapping on it while someone turns the engine over. Does the check engine light come on when you turn on the ignition. If it doesn't, your ECM is not powering up. You mentioned the fuel pressure is high, are the fuel injectors clicking? If they are that tells me the ECM is powered up and getting a signal.



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I don't think I understand how you bypassed the key???? You didn't provide any of those details in your first help request. I don't think it will start when the security light is on. Unitl you are able to provide all the details I don't think I can be of much assistance.

Posted on Dec 04, 2008


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