2009 Holden Omega VE commodore engine misfire...and running rough!

That is the common issues on most VE commodore, and it could be spark plug, coil pack or may be any another fault related to vacuum leak or faulty engine sensors etc.

[@victorbitter583]

What did it end up being?

[@gasguzzlermobilemechanic6913]

After the diagnosed, It was one off the ignition coil was faulty, So replaced all coils and also same time all spark plugs as well and its fixed the problem, happy day!

[@victorbitter583]

@@gasguzzlermobilemechanic6913 Thanks for the reply. Have a 3.6 sidi with random missfire.and over fuelling. Driving me crazy. new plugs, coils injectors, still rooted.

[@gasguzzlermobilemechanic6913]

@@victorbitter583 Hey Victor did u inspect and check that all the vacuum hoses are in good condition, check all the connections of the throttle body, clean the throttle body also you can go ahead and Decarbonize the engine as well...

[@victorbitter583]

@@gasguzzlermobilemechanic6913 I'll check it out. thanks.