code P0306

had checked that they are in right order....thanks

▪️Was it knocking 'before' this work was done??▪️

before yes

That really should have been investigated first! .. Suspect internal engine damage, rod bearing possible.. Can 'carefully' remove plug wires from coil one at a time .. IF noise disappears, suspect connecting rod bearing damage for that particular cylinder.. **Qualified hands-on help recommended!** .. One more note: the engine should not be running any worse after the work was done!! .. Good luck with it!

and if the noise doesn't go away

Seek qualified *hands-on* help!! .. A well trained ear can usually determine if engine noise is 'terminal' or not...

still have the sound i drove it a bit still.....oh n it like it has no power when i give it more gas....thanks