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Originally Posted by AutoBlog
If you didn't think that Toyota has been getting a lot of 'unintended acceleration' questions from concerned customers, this might change your mind. The Japanese automaker has posted a short release on the company's media website called "Why is my car doing this?" that explains how technology in cars today can "cause engine rpm to increase slightly without warning." The informative little missive explains how cold start idle-up, transmission shift, catalytic converter protection, air conditioning idle-up and power steering idle up can raise the pulse of your engine.
We were hoping that the rest of the world already knew that, for example, jamming the A/C when it is hot will cause the engine to rev a bit higher, or that starting your vehicle when it's cold outside will cause the engine to race for a few minutes. Guess not. Our favorite example is for protection of the catalytic converter. Toyota tells us that, on manual transmission models, the engine control computer will "keep the engine rpm above idle as the driver shifts between fifth and sixth gear at high speeds" to prolong the life of the emissions component.
While the list of reasons your engine may idle may sound incredibly obvious, it suggests that some customers are a bit skittish every time they turn on their Toyota, and that can't be good
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