[nize]

Originally Posted by The Glademister

...Then just to confirm, I shut the engine down, pulled the KLR jumper and plugged the KLR harness back in. The car started back up... that time. Shut the car down to push the modules back into their spot and cover with the carpet... no start. Pull the KLR connector and jumper again, the car starts up.

i think that's the clue, perhaps the wiring is frayed or shorted somewhere? the wiring in these cars are getting pretty old/brittle/frail with age.