ive just joined up so your help would be very helpful



first had the car with no problems then it started to have a problem starting from warm but would always start from cold then sometimes it would rev by itself upto about 1500rpm then a few seconds later go back down again

now my girlfriend took it to the garage and put PETROL in it and now wont start without a lot of turning over or possibly wont start atool but when its cold i can get it to start but it splurters when u rev it but if i turn it off it wont start again and it will backfire while u are trying to start it and will almost start!

please can u help!!