Should I send a mail to query the process of my manuscript since it is in the "Awaiting EIC Decision" status for two weeks? One of my manuscript was submitted to a journal in one year and four months ago, and after two rounds of reviews, its status was changed to "Awaiting EIC Decision" two weeks ago. As far as I know, the "Awaiting EIC Decision" status is the final time when the chief editor to decide whether to accept or reject the paper, but it seems the editors handled with my manuscript a little slow. Is there a chance the CE(Chief Editor) overlooked the status change of my manuscript? and should I send a requesting e-mail to speed up the process?

I am not sure my e-mail will affect the final decision of my manuscript, and whom should I sent the e-mail to, the AE or the CE? since the manuscript is in the "Awaiting EIC Decision" status.
I am encountering the same situation and I fully understand that how it feels when it comes to a final decision. 


There must be many papers awaiting EiC's decision. The request to jump to the queue is a bit impolite.
I think it has small chances that the requesting email would affect the final decision because I think AE already has a decision or recommendation. But it would have a negative effect for your next submissions;
I would suggest to send email to EiC directly after 4 weeks.