Battery explosion....

[Innuendo]

Your computer will be effected but running the engine at 3000 RPM for 15 seconds will reset the idle and sort out the rest.
Mine had just been disconnected for almost 3 months and it fired straight up.

[Big Rob]

Your computer will be effected but running the engine at 3000 RPM for 15 seconds will reset the idle and sort out the rest.
Mine had just been disconnected for almost 3 months and it fired straight up.

So that's true even if it's been sitting for months? I wasn't aware of that. I was told the computer would lose ALL memory and the car wouldn't start, so that's refreshing to know.

I have always left unused cars with the battery disconnected, but for the above reason I kept this one on the charger.

So 3000 rpm for 15 secs gets it thinking, and then a short drive will reset the computer's parameters? This is an LS1, not the Holden V8. That's what you've got too isn't it?

Thanks everyone else for your advice, Saturday will see another thorough cleaning.

[matt.p]

Alternatively before starting your car after disconnection of your battery you can turn the car onto reds and wait 10 seconds or so before cranking. This also works.

[agr071]

Your computer will be effected but running the engine at 3000 RPM for 15 seconds will reset the idle and sort out the rest.

You used to have to do that with EB/ED Falcons, but that was pretty much about it.
Re computer losing memory, this is a myth. It will loose the radio memory, but that's about it. I could go and get a VS computer that I've had in the shed for about 10 years and go put it into my current VS and it'll work just fine straight away.

If the battery was that old, it may have from some formed something on the plates within the battery and therefore once a charge had been put into it, a reaction occurred. Another thing is to look at the battery and see if the case had swelled before putting it on charge, but as mentioned before the CTEK is the most popular put into caravans/motorhomes for their trickle charge ability.