I replaced OVC / VVT unit and car now idles and run smoothly but P0301,0303 0305 and 0307 misfires still are there, should I now replace the coil pack on these banks?
Car was idling rough so I replaced OVC / VVT unit and car now idles and run smoothly but P0301,0303 0305 and 0307 misfires still are there, should I now replace the coil pack on these banks?