The feds have ended their fight to deport Ecuadorian immigrant Pablo Villavicencio while he seeks to become a legal US resident.

In a one-page letter filed Friday, Manhattan federal prosecutors said they are dropping plans to appeal a July court ruling that freed Villavicencio from ICE detention and stopped his deportation.

The about-face means that Villavicencio, who was arrested while delivering a pizza, doesn’t have to worry about getting picked up by ICE unless he fails to get the papers he needs to stay in the country more permanently.

The Hempstead, LI, resident became a cause célèbre in the immigration debate after he was ordered deported following an unusual background check during a food delivery to a Brooklyn Army base found he had been ordered removed from the US in 2010.

But a Manhattan federal judge ordered the father of two released after learning that Villavicencio was nabbed while going through a process established by the Department of Homeland Security to override his order of removal.

The judge blasted ICE for seeking to deport Villavicencio while he was going through the proper “pathway” toward citizenship.

Villavicencio, who is married to an American citizen, “should be allowed to pursue the pathway,” Judge Paul Crotty said. “He deserves it due to hard work, his dedication to the family and his clean criminal record.”

The feds declined to comment.

Villavicencio’s Legal Aid lawyer, Gregory Copeland, said he agreed to the case’s withdrawal without asking too many questions.

“It’s not a great use of my time banging on the door asking why,” Copeland cracked.