Nuts. Thanks Comptiger. Guess I hit the wrong key...
Mike, yes, either a relay or a simple switch for me to hit to break the electrical circuit. My truck does not have the MDS (multi-displacement system-HEMIs only). This is my attempt to create a decel fuel cutoff like my 91 VW Jetta, 1990 Audi 100, and my wife's 08 Dodge Avenger have.
Well, my first attempt had limited success. I dug through the wiring diagrams and isolated the ground wire coming from all the injectors and spark plugs, going into a large connector (C130) near my truck's PCM. So I cut wire #4 and ran a pair of wires into the cab so I could flip a switch and open the circuit. Well, it seems to only work if I am coasting down a hill with the throttle closed. If I try it with the truck idling in the drive, it keeps idling; or coasting toward a stoplight on close to level ground, it keeps idling. I have only seen the fuel flow on the MPGuino go to 0.0 when coasting down the steeper hill (@45 mph, in 5th gear). Reasearch continues....
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