20-year-old Bryson Oshiro pleaded not guilty Monday to charges of first-degree negligent homicide and driving without insurance.
Oshiro was earlier released on a $50,000 bail bond. His next court appearance is on Oct. 22.
Police say Oshiro was legally drunk when he was driving on Kupuna Loop in Waipahu on Aug. 11.
18-year-old Orlando Vallejo from Mililani died from his injuries.