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Measurement Description Coil Near Plug
Multi-Port Fuel Direct
Injection Injection—Gasoline
Energy (1000 V zener load) 90 mJ Peak secondary current 110 mA (1000 V zener load)
Spark duration 2.0...

Of course, this was from a manual the we wrote for a parts supply company that was delivered across the continent to professional automotive technicans.
For many the program was too much information...

The GM Cd's are ok, they are just too simple and provide few solutions based on just reading the operation and testing documentation.
Does the GM CD's show you how the circuits work using animations...

This is interesting... I am writing an electronic Ebook on EFI Tuning and efficincy modeling... for a client. I also have to deliver training for it over the net.

If you think that this would be a...

We have lots I don't think we will ever run out.

Right now we are writing a tuning manual that covers many of these areas in extreme detail.

Thats what we need to finish by august 30th

So...

I just love to play with vehicles and engine controls...
I write service manuals and technical documents for others and facillitate training classes and such... I still work on vehicles, testing and...

So It is Hmmmmm:notacrook:

Here is a sample of the Coil saturation patterns I spoke of... This is a tutorial I put together to demonstrate the reason there is dwell correction and why it should not be changed.

Regards ...

I will have to see if I can either upload them here or just put them on my web site.

I'll do that this weekend...

I'll post several of the GM Ignition patterns and traces for comparison and...

Coil saturation is not engine speed dependent it is dependent on inductive reactance. Once the coils magnetic strength reaches maximum flux density continuing to allow current to flow in the circuit...

Hello All,
This is just a little sample of the GM OBDII class that I put together, I am happy to be a member of your community and look forward to learning from and sharing knowledge with members.
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