Just had my engine replaced about a month ago for this issue, it was misfiring on cold starts. Now it's doing it again, not as bad as before but right when i start it i would say it misfires maybe 2 or 3 times before everything is fine.

What do you guys think?

 

my cat clogged up which i think is due to my engine failure. how old are your coils and plugs

 

well i just replaced my plugs and when they replaced the engine they had said my coils were fine, and before the engine was replaced about 2 weeks earlier i had the cat replaced as well.

 

These cars run pig rich. You will get misfires. Run it at a giher RPM more often.

 

It's normal for the rotary to burble at start up.

 

thanks guys i didnt want to have to take the unit back, ill take it back if it gets worse.