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knock sensor

Discussion in 'ECU's, Electronics, and Tuning' started by skylineboy, Dec 8, 2003.

  1. skylineboy

    skylineboy Junior Member

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    Does the knock sensor have voltage? IF so, do I have to split it with another wire that has voltage? I hooked the knock sensor wire straigth from the ecu to the knock sensor and it doesnt work. any help will be appreciated. thanks.
     
  2. AllMotorMonster

    AllMotorMonster Senior Member

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    What OBD? 0 ? 1 ? 2?

    Voltage? Not exactly......
     
  3. skylineboy

    skylineboy Junior Member

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    it's an obd1 p72. about the voltage, for example, map sensor has 5v.
     
  4. asmallsol

    asmallsol Super Moderator

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    I just did this. What harness are you using?

    Read this.

    My last little thing on the page will give you some info. Also, get the pinout sheet for both the p72 and what ever your stock ecu is (probally p28 or p30) Last, check out he article section for pin out stuff.
     
  5. Joseph Davis

    Joseph Davis Member

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    KS is a piezoelectric device that when exposed to vibration generates it's own signal, on the order of a volt at a couple of milliamps.

    The problem you think you have is most likely because the KS line is not properly shielded... the problem you actually have is that the way the Honduh ECU implements the KS is worthless, so wiring one in is a waste of time + effort. Run a 1K resistor across KS pin and ground and you'll have no more KS codes.
     
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