I need an Idiot Guide to open and closed loop
06-13-2007, 07:38 PM
#1
Registered User
Thread Starter
Join Date: Nov 2005
Location: PA
Posts: 646
I need an Idiot Guide to open and closed loop
what is open and closed loop... and what would happen if your car did not go to open loop at wot?
and last how would you fix a car that would not go into open loop at wot?
and last how would you fix a car that would not go into open loop at wot?
06-13-2007, 08:29 PM
#2
Registered User
Join Date: Aug 2002
Location: Montreal, Quebec
Posts: 885
Not sure if it's what you're looking for, but it's a good explanation:
http://members.aol.com/InjuneerZZ/Sc....htm#step%2014
scroll about 1/2 way down the page where it begins talking about air/fuel management.
http://members.aol.com/InjuneerZZ/Sc....htm#step%2014
scroll about 1/2 way down the page where it begins talking about air/fuel management.
06-14-2007, 06:32 PM
#4
Administrator
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 70,680
I bet you're at WOT and looking at the scan data, and seeing the flag that indicates "closed loop enabled". That does not mean its in closed loop at WOT, only that the conditions required to operated in closed loop have been met. When you go WOT, GM does not call it "open loop". They call it "power enrichment mode". O2 sensors are ignored, just like in open loop, but they call it a different name.
Thread
Thread Starter
Forum
Replies
Last Post
Redbird
Midwest
15
08-13-2002 03:29 PM