It was a day of limited running for Sahara Force India as Paul Di Resta completed just 14 laps in his VJM 05 on the second day of the mid-season testing here.
Resta's fastest lap came in one minute and 24.749 sec.
"We had a few issues today which kept us in the garage and meant that we couldn't get through much of our programme. The guys spent a lot of time changing things on the car just before lunch and I only managed to get back out for a final run at the end of the day," Resta said.
"You always want more laps, but these things can happen and hopefully we can have a full day of running tomorrow to get through our programme and learn what we need to learn."
Explaining the issues that concerned the team, Jakob Andreasen, Chief Engineer said, "We suspected the issue was related to the hydraulic system of the car so changed that as a precaution. At the same time we chose to make the most of the downtime by bringing forward the engine change, which had been planned for the end of the session."
"It has been a tough day for the guys in the garage, but they did a great job to get the car out for the final half hour and give Paul the chance to complete a handful of laps in preparation for tomorrow. Due to the lack of running for Paul, he will now stay on for half a day on Friday, before Nico takes over in the afternoon."