If you haven’t tried this yet! Run Some Injector Cleaner thru it, if it is starving for fuel this may improve the problem. That failed "nhdoc" probably has your answer as he has been thru it.
The injectors may not be completely gone however, just plugging. Several may be worse than others, hence, partial re-fire! Injector systems do want regular cleaning. The fuel you put in it may not contain a system cleaner like techtron in it. It never hurts to run a bottle of cleaner thru them with the oil change schedule! This insures you are remembering to keep up on this before the vehicle asks for help. Worth a try!
trants4md
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85 500SEL
80 Leland TR7 Convertible
And Some American Stuff
94 Dodge Ram
93 Chev Lumina APV
79-81-83 Forzda