Technical Low battery??

[Steely]

Right, whats been happening is:

first start of the day, engine turns over and starts but not as keen as usual, and flashes fuel level sensor fault on dash,


drive for five mins, turn it off then on again , starts fine, no faults!


only other thing ive noticed is, if i drop a gear on the motorway and put my foot down it shows loose connection on the dash and the MPH counter drops to 30 then back up to 75-80, bt it will keep repeating itself every few mins,

no faults on the ecu, and no faults whilst driving

just going on charge at the mo, just to see, i must admit ive left the sub switched on over night a few times , just wondered if anyone else could shed some light??

 

[Big Black Stilo]

last time my dash played up it was -6 if not colder outisde and the car had sat for 2 days and i started it and got every warning message for lights, coolant, brakes, oil and the rev counter wouldnt work, then it all jumped back to life.