Hmm interesting. This has been happening to my car for a couple of weeks now. I have a 2003 Holden Vectra and every time I refill it, I have to put my foot on the accelerator to start it. Other times there's no need to. Sometimes I fill it just a bit more than the click to get even numbers. Is this a serious problem that I should get my mechanic to fix or can it wait for the next service in April? Thanks.