Join Date: Jul 2011
Location: Cologne, Germany
lets recap a moment:
you have 155mA draw, which is 8 times what you should have (<20mA: radio memory and clock are only things that should be drawing)
you say fuse #5 (radio, indicators etc) draws 28mA
Does any other single fuse show a high draw other than #5?
when you remove ALL fuses, what mA draw do you have?
Id check under rear parcel shelf.
Main battery power (+) goes via isolated connector block G137 (on side of ECU carrier mount) and from there direct feed to:
pin #18 of ECU.......pull the big ECU connector plug and check! (carefully)
pin #30 of motronic 'red stripe' relay....pull the relay and check!
pin #30 of auxiliary relay (the one with the 15A fuse)......pull the relay and check!
The battery main power (+) also goes direct to the starter, then through the main (again, isolated) connector block on the inner fender and off from there.
Can a starter cause drain back, like an alternator can? dunno, tbh
Dom - Alfa Spider 1990 S4 - formerly: Alfa 101 Sprint, 2600 Sprint, Montreal - family classics: Jensen Interceptor II, '58 Hooper RR Silver Cloud I, Shadow II, '60 Corvette.
Last edited by spiderserie4; 06-09-2016 at 12:41 AM.