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knock sensors

This is a discussion on knock sensors within the General Help forums, part of the LSx Technical Help Section category; i got a code that pops up goes away and then pops back on again is p0332 i believe. My ...

  1. #1
    REAPER Z28 reaper ws6's Avatar
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    knock sensors

    i got a code that pops up goes away and then pops back on again is p0332 i believe. My knock sensors Now i am running a cam and the engine does rock back and forward im guessing because of the cam could my cam be making this code pop up or is it something else? i dont really hear my engine knocking just a small ticking like the lifters. the oil pressure is normal, and my fuel pressure some times wen cold my fuel gauge located at the fuel rail reads zero, i dont know if thats normal.

    thanks for the help

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    Senior Member tatertot91's Avatar
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    It reads zero when off? Did you check the motor mounts, the cam might cause a little more motion but it shouldn't be rocking around violently. Also was the car tuned for the cam?

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    REAPER Z28 reaper ws6's Avatar
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    naw is not violently and yes its been dyno tune and it only reads zero some times not all the time

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    Senior Member tatertot91's Avatar
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    When you did the cam did you replace the knock sensors? The harness could also be a cause of it. If you havent changed these i suggest replacing them with new ones and a new harness.

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    is that what the code means? p0332 is it bad to run the car like that? i mean it drives really good with no problem

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    Senior Member tatertot91's Avatar
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    Well it's just pulling timing. A bad knock sensor can cause a car to lose lots of power, i really recommend swapping out sensors. The sensor is just for bank 2 but if the sensors have never been replaced i would swap them both out along with the harness, it's just good insurance. New ACDelco Replacements is the only way i would go though. Have had really bad luck with aftermarket brands

    Here are the part numbers if you end up doing it
    Knock Sensor - 12589867
    Harness - 12601822

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    ok thanks i kinda got a felling that if i swap them out there still going to come on. But im thinking on doing the lsxr intake and if i do it ill replace everything will im at it and take her for another dyno tune

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    Senior Member tatertot91's Avatar
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    Even better

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    yeah if i do that work i want some goody's as well

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