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Originally Posted by jdmccright
Regarding #2, the ECU will feed gas if your foot is off the accelerator whether you're in our out of gear.. in both cases the engine is at idle state. But in gear, the engine is providing braking through the torque converter, so idle fuel rate is being consumed at 2000 rpms versus 750 rpms. In a manual transmission, the effect is the same only more pronounced since there is a direct connection between engine and transmission...no slipping torque converter.
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I keep thinking about this statement but unfortunately cannot find any information neither for nor against it. From what I have read at different automotive forums "when your foot is off the accelerator injectors do not get any gas"
Hopefully somebody else will chime in...
Sam