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Old 07-10-2008, 10:26 PM   #13 (permalink)
EcoModding Lurker
Join Date: Jun 2008
Location: AZ
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All gauges are inaccurate, as Gene Berg once said... For diagnostics, you have to spend some cash for the good ones. For general driving, you just need to plug them in and get used to the readings. If it's a lot higher or lower than normal, start checking things out, otherwise the engine is doing as well as it did when you installed the device.

I have a half-dozen or so gauges in my Vanagon. Each tells a different story, but after you learn the car, you can figure out the best methods for efficiency.

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