View Single Post
  #5  
Old 03-07-2007, 12:53 PM
UncleBob UncleBob is offline
AF -Advisor
 
Join Date: Feb 2006
Posts: 1,482
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Question About " Open Loop "

WBO2 systems pretty much never ignore the sensor, and its always in closed loop, decel, WOT etc. The only time they aren't in closed loop is for the first 10 or 20 seconds of a cold start, which is how long it takes for the sensor to heat up.

For NBO2's, with a heater circuit (3 and 4 wire) they pretty much follow your list of when they are open. Non-heater (1 and 2 wire) are less reliable at idle and usually are either ignored....for the most part
__________________
life begins at 10psi of boost

Three turbo'd motorcycles and counting.
Reply With Quote