Flat Battery - Numerous Cambiocorsa Faults on Manual

[cooldudeoli]

Hello,

The battery went flat on my Maserati 4200 GT Manual gearbox, up until this point the car has run faultlessly for years, it was boosted using a powerpack (yes I know it should have been trickle charged). Since this happened the MSP, Engine Management, ABS, Cambiocorsa Gearbox and ICE Warning light have come on permanently and although it is a Manual the majority of the faults are related to a Cambiocorsa car. Even the green Cambiocorsa gear display screen goes from displaying a large 'N' to 'F'. There is also a bleeper continuously bleeping. The car runs/drives perfectly. I have checked all the fuses - with none blown, have charged the battery to full capacity, and tried clicking the isolator switch off (Disconnecting the battery) for a couple of hours, and then turning ignition to first position for the computers to sync but to no avail. I'm guessing it could either need a reset using the dealers computer, or a relay could have blown.

Has anyone got any ideas, it would be much appreciated, many thanks

 

[Parisien]

With so many lights on, maybe best to get it SDed and diagnosed and then cleared/reset.

Car is starting normally? Did you just recharge battery or buy a new one?

P

 

[cooldudeoli]

Thanks Parisien, I have booked her in to visit Maserati next Tuesday for have the faults read then cleared. The car starts normally. I recharged the battery on a trickle charger. I will let you know what the outcome is.

 

[jamesc69]

Whats the general concensus on using these powerpacks/stations? Looks a bit too dramatic power boast to me leading to possible ECU damage?

 

[Parisien]

Not recommended I believe James


P

 

[CatmanV2]

I think the logic we discussed on another thread is sound. It's not the boost, rather the disconnection and (probably) instant voltage drop causing a spike via back EMF. On balance, I'd trickle charge a flat battery up to working voltage using CTEK or similar, and then start from there, or simply swap in a new battery.

YMMV

C

 

[Maser Sod]

If my battery ever goes flat, I take it out and recharge it indoors, then re-install it. Doesn't take long, and eliminates any worries about frying an ECU.

 

[Parisien]

So how often can you revive a flat battery....?


P

 

[QP4Me]

I have been reviving a totally flat battery for 8 years now. It's in a Model T, sits in the garage for most of the year, unloved and negelected. Around May to August, the Lazarus like battery charges and works perfectly. (Of course, the wrist snapping starting handle is useful also!)

 

[Parisien]

So worthwhile recharging my old one.......recently changed......if Maserati type car batteries are spent...they truly are?


P

 

[CatmanV2]

Frank, it depends mostly on how it's drained. I can imagine a Model T has basically 0 drain when it's off, and the battery is self discharging, and can probably be recharged a lot. If you drain a battery with small drain, you'll deeply discharge it, close to zero volts, and that's where (I understand) the chemistry starts to change.
Yours is going to be in the latter camp, but it'd be worth getting a CTEK and giving it a whirl. At least, then, you'll own a CTEK

C

 

[Parisien]

Haha....Will get my mechanic mate to check it

P