In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Chet wrote: Port and TB injectors can be open beforethe intake valve opens, which can be in excess of a 180 deg crank rotation. For TBI the injectors can be open for 90% of the time, since they feed multiple cylinders. Regards Chet ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=5&m=192262#m195092 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2007 (http://www.dotNetBB.com)