taraclinton

Right, I meant the clip from the dizzy to the harness..

I have an 86 720, that had the z20 in it, and did a motor swap to the z24 out of same year hardbody. my plugs look exactly like the pictures you posted, five on truck side and 4 on dizzy side.. so with what you said is the blue/yellow wire useless, or what would you guys suggest on how to fix this problem so I can drive my truck? they were both 2wd