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Thread: LM4 to LH6 swap

  1. #1
    Tuner in Training
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    Mar 2020
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    LM4 to LH6 swap

    Hello , i have an 2004 Chevy SSR 5.3 (LM4) auto and we swapped engine with GM 19258700 (LH6) engine. We relocated the knock sensors and their wirings.We have P0343 dtc and i turned it to no error reported but the car still not start sometimes or it takes time to start the engine. Can someone help me for that problem ?

  2. #2
    Tuning Addict blindsquirrel's Avatar
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    Apr 2017
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    Meridian MS
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    Swap pins A & C in the cam position sensor connector.

  3. #3
    Tuner in Training
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    Thank you so much for that life saver information.