I would like to put a 5.7L in place of my 5.0L.
I have an 1988 GMC 1500. On the
747 ECM wining diagrams, a fuel module is
on CK (120 GRY) ECM (B2) the note says
some 5.7L all 7.4L. Is the fuel module a time
delay relay, that keeps the fuel pump on
till oil pressure comes up ?
Thanks Don