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    Code 43 knock sensor fault.

    I have a 95 k1500 with the 5.7. I’m getting a code 43(Knock sensor fault) with in 10 seconds of start up. The timing is set to zero. I have replace the knock sensor and harness. I have also replaced the temp sensor and the ECM I continue to get the code 43. The truck is sluggish the motor was...
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