so, the engine came on, i checked its the coils and 02 señor...
i changed the coils already and haven't done on 02 señor.
but the problem came out before the 02 señor. anyway, the sound of the exhaust is like misfiring and popping loud when on low rev and also it pull slow compared to before.
thought it was the spark plug and i replaced them all, still do nothing.
what would be the problem?
i got an 3' exhaust and sport cat, but i had the exhaust running for roughly about 1000 miles before and got no problem with it.