1990 350 TBI no spark question

[RustyPile]

I suggest you start here:

https://www.autozone.com/diy/repair-...96b43f80c90e70

[68isgreat]

Great news! I re-read the instructions from Painless, and I missed the part where it said the hot wire at the coil has to be spliced into the ignition with a fusable link. I thought the power came through the computer from the wire marked ignition, but I guessed wrong. Anyway, I spliced the hot wire in and she runs like a champ!! So excited. I started this project a year ago, and now it's full steam ahead. With the modern powertrain (I'm mating it to a 700r4), I'm considering converting it to 4x4 so I can use it for everything.

[KQQL IT]

I'm about to begin a similar swap on old blue.
Howell harness and a wrecked 90 tbi pickup.
Did you use an tbi adapter to the intake ?

[68isgreat]

Originally Posted by KQQL IT

I'm about to begin a similar swap on old blue.
Howell harness and a wrecked 90 tbi pickup.
Did you use an tbi adapter to the intake ?

Not sure what you mean by adapter? My tbi unit is stock.

I found a couple tiny oil leaks at the rear of the manifold once I let it run a bit, so I'll need to put new gaskets on, but that's not surprising.

[KQQL IT]

Originally Posted by 68isgreat

Not sure what you mean by adapter? My tbi unit is stock.

I found a couple tiny oil leaks at the rear of the manifold once I let it run a bit, so I'll need to put new gaskets on, but that's not surprising.

Sorry, I'm swapping tbi onto a 454
I didn't realize you swapped the entire unit.

[roboticjunky]

Originally Posted by KQQL IT

I'm about to begin a similar swap on old blue.
Howell harness and a wrecked 90 tbi pickup.
Did you use an tbi adapter to the intake ?

Trans-Dapt makes a few different adapters depending on if the intake is spread bore or square and if you are using a sbc throttle body or bbc throttle body. They are made n the USA.

One thing to watch out for is how deep the 3 bolts holding the tbi on goes. The bolts might bottom out and you will keep tightening the bolts and then the plate will bend. I did this myself and had a bad vacuum leak.