1990 350 TBI no spark question

[notsolo]

"Jabo the mechanic" on YouTube has a Tbi no spark no fuel video....bad distributor on his I think.

[bowtie72]

Start by checking for power at coil. If you have it there next check would be the oil pressure switch. If the switch doesn’t see oil pressure it won’t kick on the fuel pump or fire the injectors. The fuel pump should come on for a few seconds when you turn the key on. Then kick on when the engine cranks. They are a pretty simple system.

[68isgreat]

Originally Posted by bowtie72

Start by checking for power at coil. If you have it there next check would be the oil pressure switch. If the switch doesn’t see oil pressure it won’t kick on the fuel pump or fire the injectors. The fuel pump should come on for a few seconds when you turn the key on. Then kick on when the engine cranks. They are a pretty simple system.

Thanks, I'll check that out. The fuel pump does come on when I turn the key on, but that's as far as it goes.

[68isgreat]

I just checked the circuits, and I'm not seeing any power at all to the coil or distributor with the key on. This is a brand new harness with brand new fuses, etc. I feel like I'm missing something basic. Would a bad computer prevent power going to the distributor/coil with the key turned on?