Quote:
Originally Posted by TitaniumTT
Not so much..... if you tune your car with a tank of e85 that is actually 85% ethanol, then go out and beat on your car and tank up with 70% ethanol..... where's your margin or error there? The OEM's know about this, which is why they have a sensor that will alter the fuel and timing maps based on the amount of ethaonal content.
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I've been thinking about this... If I tune for E85 and actually get E70 in the tank, won't it just run a little rich? Also, most of today's pump gas varies in ethanol content. Presumably not 15% like E70 to E85, but it's still a variation.
Also, apparently the flex fuel sensor modulates the frequency and pulse width of the output to represent the ethanol content so I would need the Zeitronix (or some other) interpreter to change it to 0-5v output.
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05-15-2012, 08:07 AM
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