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Having a live scan running is by far the easiest way to tell if the ECU is pulling timing while the engine is running. Beyond that, you need to be aware of what the manufacturer's requirement for an engine is, such as it's performance level. Several situations which call for higher octane: Turbo/Super charging High static compression ratio (10+:1) Both ...


The only sensors used to determine fuel quality are the knock and mixture (Oxygen) sensors. The adjustments are continuous whenever the engine is running. The vehicles I have experience with, this includes your Acura, all use this method. This method is accurate and not especially challenging from an engineering perspective. Attempts in the past to ...

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