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

 

http://www.wvinter.net/~flanham/wlan...l/staging.html

 

Great information.

Thanks Mahjik