Side Effect After Changing Plug

[Kelvin Teoh]

Dear Bro,did any of u face problem after changing spark plugs?i driving E46,After i change a new plug the engine Start to vibrate,i thought is the plug problem.then i change back to used still vibrate.i get advice tochange the coil,cost me 600 ringgit 4 pcs,after install feel betterbut still have a little bit,but when air-corned turn on no vibrate,is it have to bring back to Auto Bavaria to reset the timing!

 

[McFir7]

what engine r u using?r u using the 2.0 valvetronic?it could be the breather valve hose.its always get shrunk...i believe this is the case.

n for the coil..the previous ones is it from bremi or bosch?n the new ones whats the brand?