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Thread: Misfire - Knock sensor?

  1. #1
    Guest mantachris's Avatar
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    Misfire - Knock sensor?

    Been having a problem with a misfire for a while, changed plugs, coil packs, cleaned maf with no effect.

    Did a fault code check and it showed 34, knock sensor, could this be the root of the problem?
    Have searched on here but got no definitive answer.
    Would just go ahead and change it but it sounds like a bitch of a job to get at it.

    Misfire is at relatively low revs and full boost, feels like fuel cut if anything.

    Running 18psi with SAFCII, AVCR, 555 injectors etc.
    Last edited by mantachris; 10-04-2017 at 05:29.

  2. #2
    Now with 400bhp....
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    Mine ran terribly with a faulty knock sensor. Juddering at low rpm and making it hard to drive
    1998 Nissan 200sx s14a , 2000 std 5 speed with nismo supercoppermix clutch bn6 Sapphire Blue

  3. #3
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    it is a pain to get. easiest way to test would to be unplug it, source a known good one and mount it on the inlet manifold.

  4. #4
    Guest norfy's Avatar
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    you can unplug and bypass the knock sensor with a 1 megaohm resistor but this is for testing purposes only.

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