I need to test to see if the injectors are spraying, How is this done?

 

I take some fuel line, clamp one end on the injector, fill the line with gas or solvent, connect the other end to my compressor and set it for 35 psi. Then I hold the injector in a 2K Coke bottle and open it with 12V across the terminals.

You can see the pattern and any leaks.

Of course you need to be very careful with gas and electricity, especially in an enclosed area.

 

or there may be a electrical issue, then noid lights would be handy.

 

you can use a DVOM and test the resitance of the injector.