Battery Draining

[jltcat]

If I leave my car overnight the battery will die. After looking at it briefly I noticed that power to my ecu and s-afc doesnt shut off when I pull the key out.. Can anyone direct me to what might cause this? Any suggestions would help as I dont have a bunch of time to mess around with this issue, thanks.

Car is a 1g Talon just to let you know

 

[somdturbo]

Does it have a turbo timer? If so disconnect it and see if the problem still exists.
Just a guess but it might work.

 

[talonTSIDriver]

Did you just hook up the SAFC? If so, check to make sure you tapped into the right wire.

 

[jltcat]

I do have a turbo timer so maybe Ill inspect that..
as far as the s-afc its been in the car for over a year and everything has been working fine this just started out of the blue with no changes to the cars electrical system..

 

[jltcat]

ok removed the turbo timer harness.. the problem remains

further checks
tried another s-afc.. same thing happens
if I disconnect the fuse block next to the battery (contains 4 heavy fuses inline) it cuts power to the s-afc... when I reattach the fuse block the s-afc will remain off until I turn the key to the on position (taking the key out) then I will have to manually pull the fuse block off the battery to shut the s-afc down.. so I believe I have narrowed the problem down a bit.
but the question still remains what the hell is the problem

 

[TURBOCASS]

Check all of your grounds and then your power! start at simple things.. Make sure your wires arent chafed or damaged.

 

[jltcat]

figured I'd update this incase anyone has a similar situation... The problem was the MPI relay