Code 42 comes up on my 1990 plymouth dynasty. Cars starts up and cuts right off.

 

maybe a weak ASD relay?
what size engine? I'm assuming 2.5L?
use this flow chart to figure out the problem

 

Same problem. I disconnect battery. Cant find short. My wipers ran all the time too. Har to pull fuse but that fixed itself!

QUOTE=Don Pasqual;6170]Here's the scoop: I have a '91 Dodge Dynasty, that's a K car, isn't it? Anyway, I have what I call a three day battery drain problem. Battery is new, charging system tested and working fine. But something is drawing power. I have pinned it down to a relay which becomes energized when you connect the battery, something which should not happen when the ignition is turned off. It is the relay for the electric transmission, at least it is labeled "elec trans". What is causing this and how do I fix it?
As it stands, it draws my battery down to about totally dead in three days. I've substituted the relay, and the new relay does the same thing. The power to energize this relay should come from the ignition circut, but for some reason it is getting powered up with the ignition off. Anyone ever heard of anything like this or have any ideas.? Thanks.<img border="0" src=smileys/smiley6.gif border="0">[/QUOTE]