Hi just bought a v - 2000 slx auto 5 door 1.6 hatchback petrol which i was delighted with but when driving home the petrol gauge went to full even though i only had half a tank, the speedometer stuck at 52 miles an hour even though i hadnt went that fast yet, the rev counter stuck at 3000rpm and the temp gauge was on the red even though i had only been driving for 5 minutes. turning the ignition off a few times didnt fix this but the car drove great for the next 40 miles till i got home. i went out to check it 5 minutes later and everything was ok. can anyone help please