Thread: Ultra Lean
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Old 04-25-2011, 12:15 PM   #91 (permalink)
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Join Date: Feb 2009
Location: Estonia
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Green frog - '97 Audi A4 Avant 1.9TDI 81kW
90 day: 43.1 mpg (US)
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Originally Posted by richard_lyew View Post
geez so much of them. ill look into the 2 but for sure im getting one
If you mess with air-fuel ratio and other sensors, then get MPGuino - it measures real fuel usage. Things that connenct into OBD2 port are calculating fuel usage - you mess with sensors, you mess-up fuel calculation.


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