Quote Originally Posted by ThatDude-98 View Post
... recently picked up a 100% complete uncut 1994 Cadillac Fleetwood limousine that has all relays, fuse box, etc.
After looking here at Gearhead, thirdgen.org, google lt1swap.com, etc I can not find any info on the Fleetwood harness as far as what wires to supply power / ground to, to make it run (other than black and white schematics, which I’m not good at reading).
It is my understanding the Fleetwood is a D body and it’s engine harness has different connectors, wiring layout, etc than a F body (Camaro, TA), Y body (Corvette), B body (Caprice, Impala, Roadmaster) so all the info I find on the mentioned websites so far has not applied to the Caddy LT1.
Surely plenty of people have used the ‘94-‘96 Fleetwood LT1s in their swaps ... if so, where did you find the info as to what wires go where?
As of now I do not know what vehicle I will swap the Cadillac LT1 into as I would first like to get the wiring side of the LT1 covered.
steveo linked to an F-car info site. You probably already noticed the lack of info regarding the D-car.
The D-car LT1 & 4L60E is near as makes no difference a B-car LT1 & 4L60E.
If you cannot find any info on the Fleetwood harness, the similarities between the D-car harness & the B-car harness FAR outweigh the differences, so far as powertrain and emissions are concerned.
It may be necessary to think of your Fleetwood powertrain as a B-car powertrain, because that's far and away the closest comparison.
A Fleetwood, ultimately, IS a longer Caprice.