WS1 Petrol Injector Testing

Using this formula calculate the pulse width of each injector both at idle and when the engine is revved up

" Pulse width ms = ( % Duty cycle/100)/Frequency"

Idle:

Cyl # 1

Pluse width ms = (84.4/100)/0.008 = 105.5 ms

Cyl # 2

Pulse width = (84.6/100)0.008 = 105.75 ms

Cyl # 3

Pulse width = (84.6/100)/0.009 = 94 ms

Cyl # 4

pluse width = (84.5/100)/0.008 = 105.62 ms

Accelerated:

Cyl # 1

Pulse width = (54.5/100)/0.034 = 16.03 ms

Cyl # 2

Pulse width = (54.7/100)/0.023 = 23.78 ms

Cyl # 3

Pulse width = (54/100)/0.043 = 12.55 ms

Cyl # 4

Pulse width = (54/100)/0.048 = 11.25 ms

Q.Give your conclusion on whether this is an acceptable way  to test injectors and why?

A. yes, but I think by osiciloscope is the better way to test injectors. It shows us the accurate results in the wave form.