1987 300e No fuel to injectors

[aspireelectronics]

Hey guys,
I posted earlier about this vehicle...
It would start but stall in seconds.
Well it turns out it Was running from cold
Start enrichment only, I thought I ruled out the FD by
Jumping, the fp relay. And pressing down on the afm
I had all six injectors out,When pressing down on afm
All six injectors squealed an had conical spray pattern.

Today I removed all six injectors but left cold start valve alone, relay installed,
after cranking.
Engine started with all injectors out and ran for two seconds.no fuel sprayed
From injectors though.

Also I had to press down pretty far on afm plate with relay jumped to
Activate injectors

Is it time to condem the FD?

Suggestions appreciatated

[Ivanerrol]

The injectors have an internal valve that only releases when the incoming pressure reaches a certain point.