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Old 01-29-2013, 02:16 AM   #2 (permalink)
D.O.G.
Wanting more for less
 
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Join Date: Jan 2011
Location: New South Wales, Australia
Posts: 307

Metric - '94 Honda Magna 250
Motorcycle
90 day: 70.63 mpg (US)

RedCelica - '94 Toyota Celica ZR
90 day: 35.97 mpg (US)

i30 - '12 Hyundai i30 Elite
90 day: 39.84 mpg (US)
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I'm not ready to do it yet, but I was planning to add extra DFCO to my auto Datsun.

The Datsun only shuts off the fuel if you're above 3000rpm with the throttle closed, holding it down to 2700rpm, where the fuel turns on again. Almost useless in every day driving.

I was going to use a digital vacuum switch (because I already have one) set to switch at a bit higher than normal (idle) manifold vacuum (maybe with a 1 sec timer?). That would then control an injector kill switch circuit.
The Bosch L-jetronic EFI the Datsun uses isn't very sophisticated.
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