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Old 06-24-2009, 01:26 PM   #29 (permalink)
The Atomic Ass
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Join Date: Oct 2008
Location: Mason, OH
Posts: 535

Overland - '24 Nissan Versa S 5MT
90 day: 40.23 mpg (US)
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Quote:
Originally Posted by Formula413 View Post
How are you all determining when your injectors have stopped firing? Are you going by the cutoff feature in the Scangauge? Or have you wired up LED indicators? I'm still very curious about this. I'm not convinced that my car does this, but I can set the "fuel cutoff" setting in the SG according to the manufacturer's instructions and see cutoff indicated by "9999MPG" under certain coasting conditions. But as best as I understand it this is just a guess. On the other hand, one of my manufacturer-specific X gauges is fuel pulse width, and I never see this register zero under any coasting conditions. Thoughts?
I can't tell if my father's truck does it or not, the 2.2L doesn't have much back torque to begin with. But on his Bravada, it's very noticeable when the engine stops receiving fuel. It also has a factory gauge, which hits 99mpg when the injectors stop.
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