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Old 09-24-2010, 03:37 PM   #22 (permalink)
Niner
EcoModding Lurker
 
Join Date: Sep 2010
Location: Ovid MI
Posts: 45

Niner_xA - '05 Scion xA
90 day: 35.82 mpg (US)

Horse Hauler - '95 Ford F-250 XLT
90 day: 13.47 mpg (US)

Butterkup - '02 Mazda Miata
Thanks: 2
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The engine will shut down the injectors when coasting with an automatic or the manual in gear, but that will also use the rotational force of the engine turning to "brake" the car. By putting the transmission in neutral and shutting off the engine, you are able to coast longer. You can key off and then back on, although this turns off other stuff as well (and you have the same caveat - turn back on too fast and the engine keeps running).

I have the xA and the schematic looks similar. The single 15A fuse that powers the injectors also supplies power to just about everything else in the ECU. In fact, that fuse feeds the ignition switch, so it would be the equivalent of taking the key completely off - no acc power either. I am not sure if I'm going to try and follow the black/red wires back to where they're joined or not; I may try and cheat and follow the black/red wire out of the ignition switch.
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