I rolled over my 401k from my previous employer and it’s showing that rollover is affecting my income and taxes and it shouldn’t. I rolled it into a qualifying plan?

Code G is correct if it was rolled over. Where do you see it affecting your income? It amount will be listed on your return but is not taxable.

IF it was FROM a traditional, before-tax 401k, and not a ROTH 401k

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If you did enter it properly, you still may need to go thru the follow-up questions after the main form, even with the "G"

DO NOT indicate you rolled-transferred to a "Roth"  (there are two follow-up questions about that which are "No" .... unless you did transfer to ROTH).

IF you did transfer to an outside ROTH account, then the value in box 2a is taxable income.

If you are looking at a summary screen or review screen those show the full amount as income and lump a lot of stuff together. You need to check the actual 1040 form and make sure it's right.

If you rolled it over it should say Rollover to the left of the taxable amount on 4b or 5b.   

For Online, You can preview the 1040 or print the whole return

https://ttlc.intuit.com/community/accessing/help/how-do-i-preview-my-turbotax-online-return-before-filing/00/26160

A nontaxable rollover should have a zero in box 2a of the Form 1099-R.  If box 2a has a nonzero value the form is reporting a taxable rollover to a Roth account.