Quote:
Originally Posted by 92snowmachine
why don't you just measure the on time instead of messing with duty cycle calculations? your 289 can measure .00025ms on time but could never display that in duty cycle because it's less than the .01% display range.
|
But measuring duty cycle tells you what percentage of the period is already high. If Duty cycle goes to cero, then for sure "on time " is cero.
In my opinion, duty cycle is the most efficient way to know if any injector is receiving injection signal. But you need a reliable DMM. An oscilloscope is too expensive.
Other good way to know if there´s fuel injection is reading O2 signal. If O2 signal goes to cero, then there´s no fuel injection.
It´s too cold outside and winter is comming hard here in Montreal... I think I´ll leave this meassurements for next summer.