ran out of gas and now eractic idle, cuts out and check engine light on.

What is your question?

Maxima has 111,000 miles on it.*Heres the back story- I recently had an oil change and asked about pre maintance that should be performed (ex. spark plugs was listed at 105,000 in my owners man) I was told don't worry about it. So 3 nights later I was low on gas about 30 mpg on my range, I went to pass a car, accelerated & the car just shut off, DEAD. Tried to crank it a few times. nothing. Went an added some gas still wouldn't crank. Next morning added a lil more gas & it cranked but acted like it was going to die right after it cranked & rpms were at 500. sounded really rough. So kept just giving it gas( brothers suggestion) Drove it to go put gas &1 bottle of Hett in the tank. when my car got to half a tank I re filled and put 1 more bottle in. MAIN ISSUE- cutting out while driving , service engine soon light on &now when its idling every few sec it slows down at about 500 rpm then directly back up to 1500(not 100% sure but its normal range). it continues while idling. so worried

What makes this problem better or worse?

dont know what to try. bro thought about changing spark plugs

How long has your 2014 Nissan Maxima had this problem?

8 days