NASCAR has determined that the race team for Ryan Newman manipulated its tires during a race at Auto Club Speedway in California.

Newman was one of several drivers to have tires confiscated following the March 22 race. An inspection found the Richard Childress Racing team violated a rule that bars any modifications to the tire or wheel, including the valve stem hardware that is used to release pressure.

NASCAR fined crew chief Luke Lambert $125,000 and suspended him for the next six races. He was also placed on probation through the end of the year.

Tire technician James Bender and engineer Philip Surgen were also suspended six races and placed on probation through Dec. 31.

Newman and car owner Childress were docked 75 points each.