This is a PWM with a fixed frequency of 100 Hz, remove the jumper and get 350 to 3K Hz adjustable with the pot. I need to change the frequency to 5 Hz the low end to 50 Hz or what the Hz ends at with the pot controlling IC/1. This will allow me to pulse, flush and check the balance of fuel injectors more to their normal operating range of 600 to 6,000 rpms.
I haven't a clue what to change to alter this frequency down lower plus not doing any damage to this kit I assembled.
Any resistance or parts change values will be greatly appreciated for this project.
I'm due for a smog check and running out of time. With 24 injectors to flush and pick i'll be able to find a balanced set of 8 with flow. I made a sight glass cylinder out of a 750 ML wine bottle on my diamond saw. I have a electronic timer to repeat tests plus a Burette tube to measure in cc's the output volumes. Sorry way off topic of the HBT ya think?
In my email box I have a much larger scan photo as an attachment but can not get this onto the forum.
Email me i'll send the diagram back that is larger in my email, i'm at [email protected]
. Again thanks for the intrest and help. Carl.