I can hear backfire from air filter and muffler, is anyone got the same problem as me? My friend told me that i dont have to tune up or something( i know a bit about car engine) coz ecu will tune by itselft to stop the backfire, and can anyone tell me why engine got that problem? thanks

 

Give us all of the information about your car so that we may better help you, and what steps you have taken to troubleshoot the problem.

 

get your timing fixed. thats all i can think of

 

New sparkplugs, get timing checked/ adjusted, and replace rotor & cap.

A basic tune up... don't take your friends word for it. Unless he has personally check these above mentioned items himself and judged them good.

Ps. your engine is slowly destroying itself