looking for some pointers here. if i floor the car from a stop or around 25 as i get up ato 70 the check engine light will start flashing. this is pissing me off because i just bought the car recently and it only has 77k miles. should i try a tune up?, change the super charger oil? is it a bigger issue? this is a performance car and every time i try having some fun with it i shouldnt have to worry about it blowing up. anybody ever had this problem before? also my blinkers do not function properly when the car has been sitting in hot or cold weather.