I need some help from those who have used a Fuel Injected harness from (Painless)
I completed the 5.3L Vortech swap - mated it up to my SM465 4-speed and all is good. Engine started and runs good, but as soon as I connect the positive battery terminal to the battery - the fuel pump starts pumping.
Repeat - not when I turn the key, but as soon as I connect the battery.
I called Painless and they think it's my computer, but it ran great the day I pulled it out of a 2002 Chevy truck. Upon turning the key to start-run, it should pressurize the system and then the PCM takes over the signal to start/stop the fuel pump, but in my case it just stays on.
Has anyone ever seen or heard of this ?
By the way - it's not wired straight to +12v, because if I pull the fuel pump relay or relay on fuse panel - it kills the pump like it should.
Thanks for any info...
Mike
I completed the 5.3L Vortech swap - mated it up to my SM465 4-speed and all is good. Engine started and runs good, but as soon as I connect the positive battery terminal to the battery - the fuel pump starts pumping.
Repeat - not when I turn the key, but as soon as I connect the battery.
I called Painless and they think it's my computer, but it ran great the day I pulled it out of a 2002 Chevy truck. Upon turning the key to start-run, it should pressurize the system and then the PCM takes over the signal to start/stop the fuel pump, but in my case it just stays on.
Has anyone ever seen or heard of this ?
By the way - it's not wired straight to +12v, because if I pull the fuel pump relay or relay on fuse panel - it kills the pump like it should.
Thanks for any info...
Mike