98 k1500 5.7 starts/dies starts/dies so on so on

[kinger95]

ok i have replaced all electrics under hood dist/ all new / ECM new remapped ./ coil new/ plugs & wires new / mass air flow new/ ect engine still acts like it is in security mode and have bypassed 3 wires on column on ign switch still wont fire correctly last time i used it ran like new to take off with it drove roughly 3 miles then did and same ol same ol start and die strt and die



QUESTION being can i run a hot wire from toggle switch in cab to fuel pump ?
and hot wire the coil from, toggle switch like the old days ?

[fredjacksonsan]

Before hacking up the wiring any more, check your fuel system. There could be starvation if the fuel pickup or filter is getting clogged, or the fuel pump is dying.

[kinger95]

2nd New fuel pump and tank just replaced all new

[fredjacksonsan]

Computer? I have a buddy that installed aftermarket stereo, and one of the speaker magnets was close enough to the computer to scramble it periodically.

[kinger95]

Brand new E.C.M. AND FLASHED

[fredjacksonsan]

Man....

Perhaps a loose connection somewhere...I'm out of ideas, don't know if running a hot wire would fry anything or not.

[kinger95]

I did find out how to jump relay under hood trying that tomorrow --yard work today and tonight before it rains. ?