i drove my car around for about 40 mins today with the temp 75 degrees outside and the temp gauge on the car on the r for normal...i went to a friends house let it sit for about 15 mins..started the car back up and it died so i started it again and again it died so the last time i started it i had to keep giving it gas to keep it running and had a rough idle shook the whole car once i started moving it stoped...i had this problem last summer had the timing adjusted with a tune and thought it was fixed.. any sugestions?