FiTech EFI system

What type of filter?

As I read and learn more about computer controlled systems I see that resistor plugs should be used in these applications. Ill be switching to resistor plugs.
I agree on the resistor plugs any radiation of EMI can cause issues with the throttle body trigger signal. My filter is for any noise that might be coming in on the 12 volt supply line (from the alternator brushes etc). It helped eliminate the noise issues with my FitFiT.