Injector Duty Cycle

I have injector duty cycle loaded in my scanner but when I connect to a vehicle, It does not log anything. What am I overlooking?

Got a scan log?

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Originally Posted by EC_Tune

Got a scan log?

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No. As soon as I click connect and scan the needle disappears on the injector duty cycle guage. All the other guages work.

Are you logging injector pulse width (ms) and engine rpm?

Quote:

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Originally Posted by 12secSS

Are you logging injector pulse width (ms) and engine rpm?

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I am not logging inj. pulse width but I am logging engine rpm

Injector duty cycle is a calculation based off of your injector pulse width & RPM, if you are not logging both there is no way to calculate injector duty cycle.

Thanks for the help.