No cel, change gas, new engine mounts, no cracks with the coils, spark plugs looked good, 26k kms, no faults on piwis. The misfire seems there even when throttle is applied up to 2500rpm with car in park or nueteal. Engine does not consume oil. This slight misfire like vibration is only felt when idling and car not moving when throttle applied. When the car is moving, there is no evidence of this vibration, accelerates well and generally good running. What could this be?

 

Does it happen only when cold and when you start up the car in the morning mainly around 2000-2500 rpm?
If so, I have the same, had it checked by the dealer, left it there overnight and they checked "everything"
No error codes and kept and keeps happening

 

Vibration on startup is normal i think, mine happens even when engine in operating condition. It is there when idling and there even with slight throttle application up to 2500rpm. There are no hiccups when car is moving already. No feeling of misfire or anything when driving.

 

had the same. missfire feel when cold and getting the car moving from 0.
I was on petro-canada octane 94.
move to esso octane 91 and problem is gone completely