Despite nursing a damaged anti roll bar through the opening loop, the Hyundai i20 R5 man moved into top spot when Solberg picked up a puncture during the second pass of the Coiluna - Loelle speed test on Saturday morning.
Solberg responded in the afternoon and took back the lead with a storming run through SS11. However, he went off the road in his Skoda Fabia Rally2 on the final stage of the day, handing the lead back to Huttunen.
“Our game plan has worked very well so far, but we still have four stages to go and Sunday will be a tough day,” said the Finn.
Kajetan Kajetanowicz was second in another Fabia. The Pole claimed two stage victories and trailed Huttunen by a mere 10.5sec, providing the ingredients for a fierce final day battle.
Championship leader Marco Bulacia completed the top three, 1min47.1sec behind Kajetanowicz in a Citroën C3 R5. The Bolivian ended his day on a high with a stage win on the Tergu - Osilo 2 speed test.
Hyundai man Umberto Scandola was 1min12.1sec further back in fourth, whilst Sean Johnston rounded out the top five.
Johnston’s day wasn’t without drama. The American was lucky to continue after rolling his C3 towards the end of Coiluna - Loelle 1 and currently lies 5min36.6sec adrift of the leaders. Alberto Heller was sixth in a Ford Fiesta.
Frenchman Yohan Rossel retired his C3 in the opening stage of the day with steering issues after hitting a bank, whilst fellow countryman Eric Camilli crashed in the same test. Nicolas Ciamin was another casualty with transmission issues on his similar car.