NEW YORK — PepsiCo Inc. is hoping to revive its Quaker division with new types of cereal, a reformulation of its instant oatmeal and a new marketing campaign.

The brand's trademark hot and cold cereals have been hurting in the down economy as people shift away from name brands to save money. They're also not eating as much breakfast, said Quaker President Jaya Kumar.

So the company is adding whole grains, removing sugar and focusing on the healthy aspects of breakfast to link its brands to the first meal of the day.

The move is part of a wider PepsiCo effort to make its products healthier by cutting sodium, sugar and certain fats, and boost sales of its healthier products such as Quaker, Tropicana, Dole and Tazo Teas.

Quaker's big marketing push starts Sept. 1 with the launch of new varieties of cereals and an advertising campaign. The campaign, which includes elements on Facebook and other online ventures, will pair up with fitness expert Bob Harper of "The Biggest Loser."

Quaker has boosted its marketing spending by 50 percent for the rest of the year, though Kumar declined to cite dollar figures.

TOKYO — The U.S. government has beefed up its investigation into Toyota's Corolla and Matrix vehicles because of a possible engine defect that might can cause them to stall.The National Highway Traffic Safety Administration said in a statement that it was raising its preliminary evaluation to a more serious scrutiny called an engineering analysis to look into the problems that could cause the engine to stall, not start or to shift gear harshly.The investigation into the 2005, 2006 and 2007 model year Corolla and Corolla Matrix cars in the U.S. began Aug. 18, NHTSA said.