Injector problems

[Luke P <lukepellow@xtra.co.nz>]

Vehicle in question 1988 4cyl 80

Question,

I have access to an ultrasonic bath at work, I want to clean my
injectors, will the bath
be suitable for this? If yes I have tried removing an injector and it
comes out
of the inlet manifold with the plastic insert. How do I remove the
injector from the
insert?

Also I removed the cold start injector from the IM and cranked the
engine over.
No fuel, uh oh, removed the connector and measured the internal
resistance(4.1 ohms)
Then I connected a multimeter to the plug, and cranked the engine. No
voltage
I presume then that the injector may be ok but the control for it is not
working.
Assuming that these were valid tests

Any comments

Luke