Luyendyk, 32, a former Firestone Indy Lights competitor, is intent on competing in the 2014 IndyCar Series season.
"I would have done it a lot sooner, but economically it was tough for a few years to raise the funds to go racing," he said. "But now I feel like I'm in a situation where I'm very marketable and I've always wanted to be back in an Indy car. The goal is to run next year, hopefully a full schedule if we can find the partners, and if not I would love to be back for the Indy road course race and the '500.'
"I've never lost the passion. I've always stayed close to INDYCAR, driving the two-seater or being in the TV booth. When I went to Indy this year I mentally told myself I'd be back the following year. This is a good first step."
Luyendyk began racing in go-karts in 1992 and has competed in various series from Formula Ford to USF2000 and the A1GP. He finished second, third and fourth in the Firestone Indy Lights championship. The test was his first time in an IndyCar on a road course.
"It's my first opportunity with carbon brakes and paddle shifting since I did A1GP so there's a lot to get used to because the last time I was in an open-wheel car was 2010," he said. "Physically, it's a lot tougher than I accounted for, but I'm learning every lap, the crew has given me a great car and it's a great start to a relationship."
11/14/13 Arie Luyendyk Jr will make his IndyCar return in testing with Dale Coyne Racing at Sebring on Monday.
Luyendyk made his only IndyCar start in a car entered by his two-time Indianapolis 500 winning father Arie Sr at Indianapolis in 2006, having failed to qualify for the same race with the CURB/Agajanian/Beck team a year earlier.
Dale Coyne Racing has no contracted driver available to participate in the test, with Justin Wilson still recovering from injuries sustained in a crash at Fontana last month, and no full-time occupant for its second car.
"Thrilled to be testing with Dale Coyne Racing this Monday at Sebring," Luyendyk wrote on Twitter. "Hope my IndyCar fans are excited as I am!"