Fuel pump problem-no three second prime or purge

[fixkick]

sure the very one i posted is off mouser.
i always the them there, huge selection.
the old nEC is now obsolete.

see ZXMxxxxxxx
in post 27 , this is smart MOS fet, for cars, or anything nastly like cars. (heat and power noise etc) and other abuse.
ive not tested it, but if I could scope the old part (removed )at the old base pin (EBC) id know if it was 3vdc or more base drive,see?
we have no true schematic of this ecu,nobody does. not to this level,
good luck to you...