thegreatestben Posted October 14, 2010 Share Posted October 14, 2010 normal coil is designed to work at 12v. You don't gots 12v when your cranking. Same idea as why electronic sensors operate 0-5v. No chance of supply dropping close to the minimum required voltage Quote Link to comment Share on other sites More sharing options...
barf Posted October 14, 2010 Share Posted October 14, 2010 thanks. i get 11.4v during cranking. most fuel injectors are +12v ground switched, that helps explain why cranking pulse widths are higher too. the megasquirt has a battery voltage correction factor for inj' duty cycle. Quote Link to comment Share on other sites More sharing options...
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