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Toyota to buck engine downsizing trend, may go larger and turbo-free

Turbocharging isn't really Toyota's specialty, and the Japanese automaker isn't being shy about acknowledging it. Koei Saga, a senior managing officer in charge of drivetrain research and development, says that eschewing turbos and increasing displacement of engines using the Atkinson cycle can produce better power gains without sacrificing fuel economy, Automotive News reports.
Toyota is investing heavily in larger-displacement Atkinson-cycle engines in addition to turbocharged engines, but Saga doesn't think the automaker will use turbocharging across many product lines. He apparently remains unconvinced that the technology "makes the world better."
In Toyota's eyes then, Atkinson cycle engines do make the world better, and here's how. Their pistons complete four processes - intake, compression, power and exhaust - in one revolution of the crankshaft, and the power stroke is longer than the compression stroke. Traditional Otto cycle engines require two crankshaft revolutions to accomplish those same four operations and have equal-length compression and power strokes. Atkinson cycle engines are more efficient, but less power dense, though increasing displacement can offset that shortfall.

Japanese spark plug giant NGK pleads guilty to price fixing, to pay $52M fine

The ongoing investigation by the Department of Justice into price fixing in the automotive industry has nabbed one more company breaking the law. Japanese parts giant NGK Spark Plug Company agreed to plead guilty to a felony count of pricing fixing and bid rigging in the in the US District Court in Detroit. Its punishment is a $52.1 million criminal fine and to continue to cooperate with the DOJ's sleuthing into the problem.
According to the DOJ, NGK conspired to fix prices on spark plugs, standard oxygen sensors, and air fuel ratio sensors on vehicles from major automakers in the US, including the former DaimlerChrysler, Honda and Toyota, in a scheme that ran from at least January 2000 to July 2011. The charge claimed that the company and its co-conspirators held meetings where they agreed on bids and price quotes that were submitted to the automakers.
With the latest plea, the DOJ has caught 28 companies and 26 executives for price-fixing and bid rigging in the auto parts industry, and they have collected $2.4 billion in criminal fines. In 2013, the feds brought nine Japanese suppliers down at once, to collect $740 million. Scroll down to read the DOJ's complete announcement of the case.

NHTSA investigating 561k Toyota Prius hybrids for possible steering shaft defect

The Detroit News is reporting that the National Highway Traffic Safety Administration will investigate some 561,000 Toyota Prius models for potentially defective steering shafts. The affected hybrid models are from the 2004-2009 model years. The story indicates that NHTSA is weighing whether or not to grant a defect petition, which claims that Toyota incorrectly assembled the hatchback's steering linkage.
As of this writing, there is no recall. However, a recall based on the Prius steering shaft would be the third related to steering issues for the model since 2006. Seven years ago, Toyota recalled 170K Prius models for potential cracking of the intermediate shafts, and in November of 2012, the automaker recalled 670K units to replace the steering shaft extension assembly.
We'll be monitoring NHTSA's signals to see if this investigation turns into a full-fledged recall. For now, stay tuned.