[Formula8]

Agreed with the way these are marketed as simple systems. Not that it has anything to do with your situation but the market is not so simple.

We have people with 50 year old original wiring harnesses, gas tanks and fuel lines. 20 year old spark plug wires they got off of ebay. Rusty headers they got from Summit for $89 15 years ago that keep blowing out gaskets and a warped intake manifold they got off FB market place. They butt splice one of these systems onto their car, stuff the mountain of wires they don't need behind the engine and when the system doesn't work right, Holley, FiTech or whoever sucks and they put back on a carb that masks all of the crap.

I do wish these companies invested more in diagnostic codes or something so you could follow the crumb trail a bit better to find your problems but that will probably come out with the next generation of aftermarket FI system. There have been plenty of documented QC issues with the systems themselves as well. But for now, the marketing of these as simple 5 wire solutions to why your car runs bad to begin with is disingenuous in my view.