I owed money on my 2019 tax filing, I gave Irs info to take money from my account in a couple of months, will they also use this banking info to place stimulus funds?

That was still being discussed this morning. Please check with the IRS frequently:

What You Need to Know for IRS Stimulus Payments

 Coronavirus Tax Relief | Internal Revenue Service

Yes, the IRS will use any account where a refund was sent or a payment was authorized from.