| 摘要 |
IC engine having a PCM controller operating the engine in an Even Fire ignition mode, a fueling and firing sequence called, Progressive Single/Pair (PS/P) firing, wherein the cylinders of each of a set of four pairs of internal cylinders are simultaneously fueled and fired in parallel to produce a pump-gas fueled power curve The inherent imbalance-induced transitory vibration is compensated-for by fuel feed control, namely, leaning one cylinder of each pair-fired cylinder pair.
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