93 lumina motor swap

My mom has a 93 lumina 3.1 with 208 grand on it.
A crank bearing went out causing lots of damage.

I got a 93 engine at an auction for 300$ It has 83000 miles written on the intake.
Well basicily after lots of pain and suffering swaping engines And getting all connectors pluged in.
I still have two plugs with no place to go. It is the same wire but one plug is in the front around the area of the coil pack. And the other side is in the rear around the Crank sensor. But its about two feet longer.

The wire is Yellow and Purple. I'm pretty sure that is something important as the car will crank but not start.
Its getting proper fuel pressure, but no spark, I tested it by holding a spark plug near the block and cranking it.
I'm way over my head on this. I know basic mechanics and electronics, but that car is crazy!

did one engine have the wide flat upper plenum with "3.1 Liter" on it and the other the narrow upper plenum with "3100SFI" on it? If so, they are not compatible engines, as the "3100SFI" has two crank sensors and the "3.1 Liter" has only one crank sensor.

did one engine have the wide flat upper plenum with "3.1 Liter" on it and the other the narrow upper plenum with "3100SFI" on it? If so, they are not compatible engines, as the "3100SFI" has two crank sensors and the "3.1 Liter" has only one crank sensor.

It was the 3.1L the motors are identical.

there are 3 harnesses to the module under the coil pack, a 3 wire and a 6 wire on the passenger's side, and a two wire on the drivers side. Did you get all three hooked up? What type of plug does the harness on the back have on it and what color are those wires? I should be able to help you out

I'm going to get a couple of pics of it. That should make things easisr.
And thanks for helping

no prob

Here are some pics. The first one is where I pulled the wire up from near the firewall.
And the second one is of the front wire.
http://www.minisinmotion.com/Chad/S3600105.jpg
http://www.minisinmotion.com/Chad/S3600107.jpg
http://www.minisinmotion.com/Chad/S3600108.jpg

The vehicle speed sensor on the transmission uses a purple and yellow 2-wire connector
that would go across the back. the one on the front should go to the Ignition module.

Another thing, on your year, both the VIN-W (1 crank sensor) and VIN-T (2 crank sensors) look identical. It wasn't until 94 that they went to the Vin-T and Vin-M that had the different shaped upper plenums.

The vehicle speed sensor on the transmission uses a purple and yellow 2-wire connector
that would go across the back. the one on the front should go to the Ignition module.

The VCC, I didn't think of that. But the Ignition module already has a connector attatched to it. ITs two wire but its Pink/Green white stripe.
I looked at another lumina and saw that on the other car.

Is it possible that the other plug is for an engine cooling fan, it looks similar and has the heavy guage wire.

Another thing, on your year, both the VIN-W (1 crank sensor) and VIN-T (2 crank sensors) look identical. It wasn't until 94 that they went to the Vin-T and Vin-M that had the different shaped upper plenums.

I'm sure that isn't the case. I am using the original wiring harness for the car. And the old engine only has one crank sensor.
And if the new engine has two, I would be one connector short instead on one too many.
I just checked

Wow the way you know Luminas is like the way I know S10's LOL

does the color of the connectors designate anything?

I'm about to leave work, so I'll jump on my computer at home to see if you figured it out. I have a W-body haynes manual at home that may be more specific to your car, as at work here, I only have ones for the J bodies and A-bodies.

Alright man

The Haynes manual wiring diagram is very vague, and it's frustrating me. It shows a purple and yellow wire from the crank sensor to the ignition module, but doesn't show where the wires come from or go to directly. Check the 3-prong plug at the ignnition module and follow it back, to see if the plug you're trying to find is a jumper harness from the crank sensor to the module indirectly. My only question is that the wires seem awfully heavy guage for just a crank sensor signal, any input on this one Jeffcoslacker?

I finally found a wiring diagram and your right. Its very vague.
I have a friend who actually knows what he's doing, he is going to have a look and see.

And I am going to get back there and see that color the Crank sensor wires are, and try to trace where its going.

Because in the diagram is shows that a purple/yellow combo plugs into the ICM and a pink/black combo like the one thats already plugged in.

Ok the purple yellow wire thats in question. It goes to the connector on the pass side of the ignition module, and it goes to the crank sensor.
The car now has spark and fuel is going to the rails. But the car still will not start.
I think now that the injectors are wired wrong. Thats why I'm back here now looking LOL

But it did sputter and carry on when I sprayed either in the TB