MSefi.com read only forum (Jan.15,2018)

Lance,

Thanks for the confirmation. What is a practical limit for duty cycle ant pulse width? I understand that 80%+ duty cycle is pushing it due to the injectors nearly open constantly, but I am not real clear about what happens with high pulse width.

Thanks,
Ben

Details: MS1, V3 2.3L 4cyl, 18.3 lb/hr injectors wired in pairs 6000rpm redline I am trying to tune my upper RPM range with a narrow band o2 sensor, which for me is trying to stay about .7v or so and then plug reading (which I can't seem to do well) and other methods. At first I appeared lean at WOT...