Whats up guys, I have a question. My friend was driving on the freeway going about 70, then he stepped on it to go around another car and his check engine soon light started blinking like 5 or 6 times. Then he backed off on the gas, and it stopped. Has anyone ever had this problem??

 

Missfire.

 

random cylinder missfire more than 10 times i think. changing the plugs usually fixs this problem.