The NYPD is investigating a bogus police traffic stop staged in Queens to help a Shomrim volunteer whose friend wanted to pop the question to his ­fiancée.

“This incident is being reviewed by the NYPD and based on preliminary findings, will be referred to the proper unit for possible disciplinary action,” a spokesman said Saturday.

The romantic stunt was pulled off at the behest of Shomrim volunteer Yoel Tyrnauer, who walked into Far Rockaway’s 101 Precinct last Monday, asking for a favor for a pal, groom-to-be Yehuda Coriat, 22.

Two days later, three on-duty, uniformed cops pulled over Coriat and fiancée Sorah Oppen, 20, on the pretext of a gun and drug search.

The cops “grilled” the groom-to-be and demanded the bride-to-be pop the trunk, releasing a bunch of balloons.

The officers were all “NCOs,” Neighborhood Coordination Officers, whose job is to connect with their community.

In April, a Shomrim leader from Borough Park, Brooklyn, was arrested for allegedly bribing cops to “expedite” gun permits for the group, which patrols in Orthodox Jewish communities.