Burning fail cylinder 1,2,6

hi guys. i have this problem recently. when i start the car, it works loud during cold starting. i have searched in the internet. everyone say the spark plug and coil pack cause this problem. but i have changed all spark plugs and coil pack last year. what should i check else ? thanks

Doubt you would have 3 bad coils at the same time, also high Voltage ignition problems usually happen under heavy load, not start up.

Suggest you check the first link below in my signature.

I would consider replacing the DISA O-ring and check over all other rubber and plastic hoses, especially SAP vacuum hoses if your car has the SAP system.

thanks friend im reading now. i hope so i can solve this problem its make me annoying really

so i have checked my hoses. but it seems no problem. i have diagnosed again my car today. diagonose gave that faults. i had 3 cylinders fail. now i have 4

i have removed intake manifold,spark plugs,ignition coils, etc, and install my headers. but i have still problem. i will make a video tomorrow or today, then you can understand better. my ses light not on.

i have diagnosed yo my car now. my car have in 6 cylindes misfire. my car had 1-2 cylinders misfires last week. in 1-2-3-6 cylinders misfires 3 days ago. now all cylinders misfires. im going to set out 2 days later. i must to solve this problem until tomorrow. urgently!!!!

The last time I had 6 cylinders misfire was when my CCV caused excessive oil to be sucked into my intake. Evidence of this can be seen on the plugs for oil fouling.