I Also wondering can you control the injector duty cycle on a Haltech E8 So if I was running a bigger injector I could adjust the injector duty cycle down. Also I am looking a 1200cc fuel injectors for my secondary injectors but they are low impedance I know that the Haltech E8 will run them but what do I have to do. Do I just set the Haltech for low impedance injectors. Also I wanted to make sure can the Haltech E8 run like secondaries that are low impedance and run high impedance fuel injectors for the primaries.