Lorenzo missed the test in order to undergo an operation to help cure his recent arm-pump problems.
The leading lap times were set on qualifying tyres with Nicky Hayden the fastest rider on race rubber.
Round four of the 2008 world championship takes place at Shanghai on May 4.
1.
Dani Pedrosa SPA Repsol Honda Team (M)
1min 36.455 secs
2.
Valentino Rossi ITA Fiat Yamaha Team (B)
1min 36.707 secs
3.
Andrea Dovizioso ITA JiR Team Scot MotoGP (M)
1min 36.791 secs
4.
John Hopkins USA Kawasaki Racing Team (B)
1min 36.872 secs
5.
Nicky Hayden USA Repsol Honda Team (M)
1min 36.928 secs
6.
Colin Edwards USA Tech 3 Yamaha (M)
1min 37.145 secs
7.
Randy de Puniet FRA LCR Honda MotoGP (M)
1min 37.146 secs
8.
Casey Stoner AUS Ducati Marlboro Team (B)
1min 37.330 secs
9.
Chris Vermeulen AUS Rizla Suzuki MotoGP (B)
1min 37.617 secs
10.
Shinya Nakano JPN San Carlo Honda Gresini (B)
1min 37.725 secs
11.
James Toseland GBR Tech 3 Yamaha (M)
1min 37.767 secs
12.
Loris Capirossi ITA Rizla Suzuki MotoGP (B)
1min 37.781 secs
13.
Alex de Angelis RSM San Carlo Honda Gresini (B)
1min 37.782 secs
14.
Toni Elias SPA Alice Team (B)
1min 38.695 secs
15.
Anthony West AUS Kawasaki Racing Team (B)
1min 39.065 secs
16.
Sylvain Guintoli FRA Alice Team (B)
1min 39.223 secs
17.
Marco Melandri ITA Ducati Marlboro Team (B)
1min 39.725 secs
2008 Portuguese Grand Prix:
Pole position:
Jorge Lorenzo SPA Fiat Yamaha (M)
1min 35.715secs
