O4 2500 silverado motor swap - Truck Forums


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Old 08-10-2017, 10:52 PM
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Default O4 2500 silverado motor swap

Put a complete lq4 drop out motor in my silverado 2500 hd 6.0. I used the original pcm but the complete wire harness that came with the dropout. Now pulling 3 trouble codes. Po300 random misfire, po650 warming light open circuit po717 no signal from turbine output input sensor. My feelings is this is a pcm problem I changed the output sensor, no change no signal or amperes on wire, the misfire I changed the whole coil assembly on both sides no change. My code scanner is in for repair with snap on. Need some help
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