1990 new yorker landau 3.3l v6 question

Very doubtful. There are a few things that could do it, but not this.

Based on your other posts, I'd probably check the ECM connector first. That's the big module bolted to the fender beside the battery. There's a big long connector attached to it with a bolt. See if you can wiggle that connector back and forth. If you can, it's loose - try tightening that bolt with an 8mm socket. If the bolt already is tight, you'll have to unbolt it, remove the connector, and grind some off the end of the bolt to shorten it so it will tighten further. Shouldn't take much.

My 1991 Fifth parts car had problems like this before due to that bolt being too long. Sometimes the car would start and run fine for days, other times it would completely play dead. It threw all kinds of codes. I finally found the problem when I wiggled that connector on a rare day it ran, and the car stalled immediately. This was with a brand new crank sensor. Once I corrected the bolt's length issue, the car never had another problem.

Other things that can cause this include the factory alarm system, the ASD relay in the PDC behind the battery (I'd unplug them all one at a time and check for corrosion on the pins), wiring issues, blown fuses, coil pack (they don't usually fail)... I'm probably forgetting one or two. A lot depends on whether the car just refuses to start, or starts and then immediately stalls.

In particular, I think there's a wiring or connector issue on the black/light blue wire at the ECM. This is the signal ground wire, and is shared by all the sensors that are throwing all the codes on your car. The crank sensor uses it too. A poor connection on this wire at the ECM or that wire being broken somewhere in the harness explains all your symptoms.