I e-Filed and my Fed and State where accepted. I owe Fed, however, I never entered my account info to have a direct withdrawal.How do a change this or pay my taxes?

Here is the information on how to make a payment after filing.  You won't be able to go back in and add it to your return if it's already been accepted, but its easier to make the payment online with the IRS directly -

https://www.irs.gov/payments (direct payment option)

If you prefer to mail a check, then you can use this voucher (it's the same one TurboTax prints up) - make sure you put your SSN and 2017 Form 1040 on the check.

• Login to your TurboTax account and click Tax Home on left 
• Scroll down to Your tax returns & documents and click Show
• Then click Add a state. (You are not adding a state. This action allows you to open your return.)
• Then click File to the left
• On the Great job on your taxes! screen, click View or print your return
• This will open the return in a new window and scroll to state portion of return to find the Electronic Filing instructions page with TurboTax logo, it will tell you date in the Balance Due/Refund section at top of the page.

• Login to your TurboTax account and click Tax Home on left 
• Scroll down to Your tax returns & documents and click Show
• Then click Add a state. (You are not adding a state. This action allows you to open your return.)
• Click Tax Tools on the left and then Print Center.
• Check the boxes next to 2017 federal and state returns
• Click Print all forms and worksheets.
• Part V of the federal worksheet has the auto-debit date for federal payment.
• Part VI of the federal worksheet has the auto-debit date for state payment.