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Need help Knock Sensor code

Discussion in 'ECU's, Electronics, and Tuning' started by noob23, Sep 1, 2004.

  1. noob23

    noob23 Senior Member

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    I have an 88 Crx Si with a first gen B16 swap. It is throwing code 23, which I know is for a knock sensor. I have tried resetting the ecu, which cleared the code until the car got to normal operating temp. After that it came back on. What else should I check? I'm running a PR3 ecu, can I just unhook the knock sensor, or does it need the signal from it? I would like to get this resolved quickly after driving the car without the code and seeing how it is supposed to run. Thanks in advance.
     
  2. noob23

    noob23 Senior Member

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    Bump for some help
     
  3. pissedoffsol

    pissedoffsol RETIRED

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    unplugging it will throw the code constantly.

    you should be fosuing on WHY its going off. setting off a knock sensor at idle is a BAD thing.
     
  4. noob23

    noob23 Senior Member

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    Not certain that it's going off at idle. I just know that after resetting the ecu it came back on when the car warmed up (while driving). Where should the knock sensor be grounded? I just want to doulble check the wiring, as I bought the car with swap already done. Any other common causes of this code?

    edit: Or should it even be grounded at all?
     
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