Thanks in advance....1997 sc400 engine, I sent my harness to a company to make for me, I hooked up what they told me. Hot, starter,alt,engine ground.. my car fired up if I regulate fuel with a switch otherwise it filled rear 2 cylinders with fuel. I thought I had a stuck injector or 2 until I realized the 1st injector on the rear of the engine on each bank are the only ones clicking with ignition power and are the only ones with power at plug.. the front 6 cylinders have zero power to injectors. Car ran on rear 2 cyl.... just really rich and bad So I shut it down