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Thread: 1994 Chevy K150 Silverado Knock sensor question

  1. #1
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    1994 Chevy K150 Silverado Knock sensor question

    I just bought this truck, and it had the service engine soon light on and the guy i bought it from said it was for the throttle position sensor, so i bought anew one and replaced it and still had a code. so i went to the chevy dealer had them pull the code, and it was for the knock sensor circuit, and i look under the truck and the wire off the sensor is not even connected and i cant see where it would connect to. if any one knows where i hook the wire up to, or can give me a picture of where their truck is wired to, i would be very grateful! thanks guys!

    Joe

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    Senior Member clgrant1955's Avatar
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    i was hoping for a bit more of an explanation. i already searched that.

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    Senior Moderator chevychase's Avatar
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    you have a knock sensor on passenger side block. Does your 94 have the vortec .. or tbi? If vortec your esc/ electronic spark control will be integrated in with ign. module.
    If tbi will be in front of map sensor. on passenger side intake.

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    I've found it, but i dont know where the wire connects to. Its hard for me to think it connects from the sensor directly to the computer harness. I know it has to connect to a wire lume somewhere, i just dont see where that could be.

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    If you are looking for the knock sensor to hook up the one wire, it will be passenger side of the block about halfway up kinda under and behind the exhaust manifold
    1994 white ext cab chevy silverado 5.7 rolling 230k miles
    stock with air filter lid flipped,
    open flowing exhaust to a 40 series flowmaster dumped.
    God Bless America, Support our Troops!

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    I the wire, its dangling off of the knock sensor itself. I dont know where it connects to

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    Thats where I told you to look for the knock sensor read my last post.
    1994 white ext cab chevy silverado 5.7 rolling 230k miles
    stock with air filter lid flipped,
    open flowing exhaust to a 40 series flowmaster dumped.
    God Bless America, Support our Troops!

  9. #9
    Senior Member clgrant1955's Avatar
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    Oh, I see what your saying that the wire is already connected to the knock sensor and you want to know where the end of that wire connects.....Okey Im in the proscess of removing my headers will track it down tomorrow and give you the best help I can................

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