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Old 12-20-2007, 02:13 PM   #1
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VX no lean burn in 1st gear

I was checking my dmm while driving and I live on a dirt road that I drive slow on and I can't get into lean burn in 1st no matter what rpm. I can get lean burn in 2nd even really low in the rpm range, close to idling. I don't think this is a problem I just wanted to share the wealth with you guys and for the ones out there with no lean burn monitors installed..

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Old 12-20-2007, 02:43 PM   #2
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Old 12-20-2007, 05:47 PM   #3
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I do know that the ECU can determine what gear the car is in using a formula that involves RPM, MAP, and VSS signal. Perhaps Honda's reasoning for not allowing lean burn in first gear is a safety protocol in case you need fast acceleration in first gear. The transfer from lean burn can sometimes take a half second.

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Old 12-21-2007, 05:34 AM   #4
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That or they know you'll never be cruising in first.

On the never-ending quest for better gas mileage...
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