What Happens If You Blank Your EGR? Pros and Cons Explained

Discover the effects of blanking your EGR, including performance gains and potential legal issues.

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Blanking your EGR can have both pros and cons. On the positive side, it may lead to improved engine performance and fuel efficiency by reducing the intake of exhaust gases. However, this practice can also result in increased emissions and may lead to legal and warranty issues since it typically violates emissions regulations. Additionally, some modern engines have an ECU (Engine Control Unit) that may trigger fault codes or enter a limp mode if it detects a missing EGR function.

FAQs & Answers

  1. What is an EGR valve? An EGR valve controls the flow of exhaust gases back into the engine's intake to reduce nitrogen oxide emissions.
  2. Can blanking the EGR affect my vehicle's warranty? Yes, blanking the EGR can void warranties as it may violate emissions regulations.
  3. What are the symptoms of a faulty EGR system? Symptoms include rough idling, increased emissions, and decreased fuel efficiency.
  4. Is EGR blanking legal? It can be illegal in many regions due to emissions laws; always check local regulations before proceeding.

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To further understand the implications of EGR blanking and explore automotive performance enhancements, check out our related videos on exhaust systems and engine diagnostics.

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