Monthly Archives: November 2014

Cold Start

In the last couple of weeks I have had a few of my VW and Audi customers complain about “hard starts” from their vehicles in the morning. As the weather is finally starting to get colder, there are things that we can look for and check to try to prevent this from happening. One of the the biggest problems we see is carbon building up on throttle plates. Gone are the days of a cable connected to a butterfly valve and manual fuel pump. Almost all late model fuel injected cars use a fly by wire throttle assembly. The throttle assembly is the heart of the intake system. Most people think that fuel is where the engine gets power but actually the amount of air that flows through the engine determines the amount of power produced. Fuel is just the catalyst and engines are just big air pumps. The more air we can force through the engine, the faster we can go. That is why we always hear about turbos and superchargers in advertising. Getting back to the topic at hand, what exactly doe ... read more

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