Injectors not clicking - no start

[DAVIDM]

86 Carrera. Motor out of car for 2 years. On engine stand and covered. Now back in car. Engine ran great before removal.

I have spark and motor runs with starter fluid in the intake.
I did a search on this problem and here is what I have done.

The injectors do not make a clicking sound. I used the old school method - one end of screwdriver on injector the other end stuck in ear. No clicking. You gotta stick your head in there a long way for those front injectors. I will buy a longer screwdriver tomorrow.

Disconnected one electrical connection from one injector. (John Walker's thread). Still no start. The concensus from this very informative thread is that one disconnected injector will allow a failed or failing fuel pressure regulator to work. Disconnect one and the others start working. If you disconnect one and the others start working the fuel pressure regulator is faulty.

From the same thread. 12v at the 4 pin connector on the engine shelf near the driver's side strut. 12v at the disconnected injector connector with key on. A test light connected in the same fashion flickers when the motor is turned over. This indicates the DME is sending signals to the injectors.

From the Pelican Tech bulletin. Fuel pump works both when jumpered and when turning over the motor.

There is fuel at the output side of the filter and fuel under good pressure at the fuel rail and the fuel hose going to the passenger bank. I don't have the equipment to test the exact pressure but a large spray indicates pressure. There is much greater pressure than when the fuel pump was failing. Pump was replaced about 3 years ago.

DME/fuel relay under the front seat is relatively new. About three years ago when I was checking the failing fuel pump.

Could the injectors be so clogged/frozen that they won't even move? Let alone allow fuel to pass?

Where is the fuel pressure regulator?
There is a vacuum line from the back of the throttle body to something in the fuel return line near the driver's rear strut. What the hell is it?

Thanks for the help so far and the answer.

By the way I was recently trying to get a non-starting 72 Dodge started and I remembered that one of the acceptable solutions for adjusting the automatic choke was to bend the little rod just a little bit. It worked. My how things have changed.
David

[addictionMS]

had something simliar, try tapping the injectors with a wrench, say a 17mm for example, you can also quite quickly pull a rail of injectors off the engine, leaving the fuel line and electrical hooked up to see if they are squrting fuel.

I pull mine first found no fuel, then tapped each one, harder than one might think, and got them moving and fuel flowing again. Now all is running smoothly

Jim

[john walker's workshop]

those electric injectors seize up after sitting too long. a fresh set may be in order. make sure there's an impulse at the plug first.

[DAVIDM]

I like the banging idea. I have always subscribed to a corollary to Murphy's Law:

If it jams, force it.
If it breaks, it needed replacing anyway.

David