“Self-adaptation” is how M-B refers to fuel trim, and that’s actually more descriptive. Regardless, understanding this electronic engine management feature will help you cure MIL-on complaints, failed emissions tests, etc.
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Now more than ever BMW owners are concerned about their fuel mileage as well as their impact on the environment. Part of BMW’s “Efficient Dynamics” movement is reducing emissions and still providing a vehicle that is a driver’s car. How are you going to keep your customers’ vehicles running efficiently?
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Mercedes-Benz’s pursuit of safer vehicles incorporates individual systems working in concert to control speed, handling, and stopping. One critical part of this is the Electronic Accelerator. Here’s how it works and how to fix it.
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With emissions and mpg both looming so large right now, you can’t have your customers driving around with the MIL on, but it’s not always so easy to find the cause of a fuel system glitch
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Tank pollutants and OBD II regulations
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Most people think of diesels as loud, smelly, and underpowered. Not anymore. Volkswagen has been refining and re-engineering Rudolf Diesel’s ingenious invention for almost half a century.
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Now, more than ever before, customers are concerned with the fuel mileage, performance and cost of ownership of their vehicles. Fuel mixture codes are definitely related, and are some of the most common codes we work on.
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We were always taught 14.7:1 was the perfect ratio of air to fuel. Well, with the need to improve fuel economy and decrease harmful emissions, leaner air/fuel ratios are required. How is the PCM going to determine how lean is lean?
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Since the early ‘90s, Mercedes-Benz has developed its Controller Area Network (CAN) to control how components communicate with each other and with us through our Compact III or Basic. How has this evolved, and what does it mean to diagnosis and repair?
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One of the first tests that should be performed during a no-start or drivability diagnosis is for proper fuel pressure. But there’s more than just pressure to think about.
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Contents Are your brake relines up to Nissan & Infiniti Standards What you need to know about...
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“The image of BMW is very strongly associated with high-power, sports-biased luxury cars in the premium car segment. In the United States, the combination of a car in this segment with a diesel engine was up until now almost unthinkable.”
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