Still can't find electrical discharge

[BlackbirdOfPrey]

I've been constantly trying to find the source of an electrical discharge in my engine block, and all my efforts have been met with failure. Basically if I let the car sit overnight with the engine off, by morning the battery is dead. The battery is brand new, alternator is new, etc....and I had the same problem before I replaced it. The only thing I've figured out is that it is something related to the MPI fuse or a subsystem (as in if I pull the fuse my battery doesn't drain) and I know that there is a problem because when I turn the car off I can hear an electrical rapid sort of clicking after I turn the car off for a second. I'm tired of having to pop the hood and pull a fuse everytime I go somewhere, does anyone have a suspect system or at least a list of system fuses to check? (my electrical flowcharts are convoluted at best)

 

[justin0469]

as the crazy clicking implies, ive heard of an MPI relay crapping out and causing electrical drains.

 

[justin0469]

or bad ECU as said in this thread and so many others
http://www.dsmtuners.com/forums/showthread.php?t=202923&highlight=mpi+relay+drain