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Old 01-06-2012, 03:40 PM
SoonerJohn SoonerJohn is offline
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Originally Posted by JoeFromPA View Post
I believe they use the starter (I'm not sure how you'd fire the next cylinder without using a starter to move the piston- the stroke goes fuel spray, compress, fire - so you can't simply ignite fuel that's sitting on the cylinder walls and you can't have it spray and compress without moving the piston - so no matter what you need a starter to get that going...)

Bear in mind it's not your typical ignition starter - a start/stop starter has much greater mass AFAIK
It is definitely possible to do it without using a starter motor. The computer determines the best positioned cylinder, it shoots a fresh shot of gas in, and fires the plug and then just keeps on firing the other cylinders as normal. The only good professional explanation I can locate quickly at the moment is a PDF, but here's a link:
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