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So I’m going to start with basically what it is, it’s a 1992 Chevy s10 with a HCI Lq4. I ran it with a carburetor for about a year and decided I wanted to go fuel injection. I bought a junkyard ECU from a 4.3 s10( I heard they were an option for a DBC ECU), and an eBay harness, and an ls6 intake. I’ve tested continuity on coil exciter wires and they seem to be fine with low resistance, but it seems to not get signal to the coils. Fuel injectors are firing but coils aren’t. Coils worked perfectly fine before returning back to EFI, grounds are good, and I checked for grounds on a running lm7 and all 4 pins at the coil were grounded with key off, but mine the different colored wires next to the red wire never has a ground even with key off making me believe it’s computer related. On HPtuners it says coil exciter pass on all 8 coils but it doesn’t seem to be true. TIA for the help, if any more information could help just ask and I could give it, I’m just a little higher skill level than a beginner, but still very clueless when it comes to EFI
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