Toyota Advances D4S With Self-Cleaning Feature on Tacoma - Ward's Auto
advances its D-4S port- and direct-injection system with the technology’s installation in the new Tacoma midsize pickup. The automaker believes it has solved the conundrum of carbon build-up on injectors with a new self-cleaning feature for D-4S, a technology that debuted 10 years ago on the ’05 Lexus GS 350 and ’06 Lexus IS 350 and today is used in the current-gen... “What we’re doing is we have a slit on the side of our injector and we’re blowing that carbon off,” Mike Sweers, the ’16 Tacoma’s chief engineer, tells WardsAuto here during the truck’s media preview. “So by cleaning on the outside of that, we get a clean injector all the time. Drivers may hear the self-cleaning taking place during a hot idle, and the process could last from 10 seconds to as long as 10 minutes, depending on driving patterns and the amount of build-up on the injectors. “When you go into a hot-idle situation, the system is going to look at the time that it ran, the number of cycles the injectors went through, the temperature of the injectors and then it goes into a self-cleaning mode,” Sweers says. “You stop at a light (and) it may clean for 10 seconds, you’re going to take off and stop at another light and it’s going to clean for (another) 10 seconds,” he says, noting the engine will deliver torque when a driver wants it and shut off the... Source: wardsauto.com
