by turbell » Tue Aug 25, 2015 9:46 pm
Just saw this and it reminded me of a problem with my GTA, not as extreme and I am not fully sure what problem you are experiencing as far as non starting but, mine used to drain a good new, well charged battery in a week or so and I noticed as you connected the earth it would ark slightly.
To find the drain I wired a 5w bulb in series with the earth which lit easily showing it was a pretty substantial drain, then removed the fuses one at a time until it went, which it did when I removed the courtesy light/ (and I think) stereo fuse.
Now lights I can live without lights inside, but Bee Gees......nah gotta 'ave Stayin alive........need tunes.
So fuse back in and as I could hear a relay clicking when re-connecting the earth, so I ran a lead long enough to go into the car from the earth terminal on the battery and one on the earth to the car then inside the car I could click it in and out and feel which relay it was, turns out it was the courtesy light timer I think, so I pulled it out and that's how it has stayed.
No idea whether its a bad relay or a problem somewhere else, but its on the snagging list.
No more problems draining batteries, sorry it doesn't fully explain your situation, but may jog others or yours is a more advanced version of mine?
Better a penniless free man, than a rich prisoner