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When do the Secondary Fuel Injectors kick-in?

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Old 02-06-06, 11:44 AM
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When do the Secondary Fuel Injectors kick-in?

I'm going to run through some BG 44K injector cleaner. For best effect I'd like to know when the secondary injectors start operating so that I an be sure that I drive the car in the range where they're open for the cleaner to get through.

I do not have a good understanding of the injector timing. I suspect that in idle and cruising modes only the Primary injectors may be operating. Are the secondaries simply RPM actuated or load+RPM or, ???

Thanks
Old 02-06-06, 12:48 PM
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Old 02-06-06, 01:01 PM
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Great information.

Thanks Mahjik
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