Tifft had qualified third in his No. 2 Chevrolet for Richard Childress Racing, and Williams’ No. 90 Chevy had been slated to start 27th.
NASCAR already had penalized another RCR team Saturday morning for prequalifying inspection problems on Austin Dillon‘s Chevy, resulting in the ejection of crew chief Nick Harrison and car chief Michael Scearce.
The Xfinity season opener will begin at 2:30 p.m.