engine ignition timing/modern cars

2010 INFINITI I35
9,000 MILES • 6 CYL • 2WD • AUTOMATIC
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GANCHO
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Is it true that modern engine timing is accomplished by constant spark plug firing & ignition timing caused by fuel ingjection controled by computer.?
Dec 7, 2010 at 6:14 PM
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WRENCHTECH
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Basically, yes. The computer controls fuel injection and ignition timing among many other things. Most cars have a direct ignition system that doesn't use a distributor and firs 2 cylinders simultaneously.
Dec 7, 2010 at 6:21 PM
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FIXITMR
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1 cylinder is on compression(fires) the other is wasted spark on exhaust cycle.(4 cyl engine)
Dec 7, 2010 at 6:35 PM
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FIXITMR
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actually the number of cyl is supplied by the number of coils. each coil having 2 outputs. 4 cyl has 2 coils. 8 cyl 4 coils, 6 cyl 3.
Dec 7, 2010 at 6:39 PM
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FIXITMR
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but no constant spark. only at TDC for each pared cylinders.
Dec 7, 2010 at 6:48 PM
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WRENCHTECH
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https://www.2carpros.com/articles/how-an-ignition-system-works
Dec 7, 2010 at 6:56 PM