CamaroZ28.Com Message Board

Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Closed loop question

   
Old Aug 2, 2007 | 07:01 PM
Share
  #1  
David94TA's Avatar
David94TA
Thread Starter
Registered User
 
Joined: Dec 2000
Posts: 489
From: Chattanooga, Tennessee
Closed loop question
When going into closed loop, the PCM begins using input from the O2 sensors. Are there any other sources of input the the PCM uses in closed loop that it doesn't use in open loop?
Last edited by David94TA; Aug 2, 2007 at 08:55 PM. Reason: Rephrase question
Reply
Old Aug 3, 2007 | 11:08 AM
Share
  #2  
MEAN LT1's Avatar
MEAN LT1
Registered User
 
Joined: Aug 2001
Posts: 1,983
From: Jacksonville,fla
Sounds like youve got it. There are a number of thimgs that will send the pcm into open IE, engine temp, o2's, maf, etc....
Reply
Old Aug 3, 2007 | 01:54 PM
Share
  #3  
Injuneer's Avatar
Injuneer
Administrator
 
Joined: Nov 1998
Posts: 71,110
From: Hell was full so they sent me to NJ
The "loop" in "open loop" and "closed loop", refers to the feedback/response from the O2 sensors/PCM, nothing else.
Reply
Old Aug 3, 2007 | 03:48 PM
Share
  #4  
David94TA's Avatar
David94TA
Thread Starter
Registered User
 
Joined: Dec 2000
Posts: 489
From: Chattanooga, Tennessee
OK, thanks for the replies gentlemen.
Reply
Old Aug 4, 2007 | 08:54 PM
Share
  #5  
stereomandan's Avatar
stereomandan
Registered User
 
Joined: Jun 2003
Posts: 3,620
From: Saginaw, Michigan
Remember that the MAF is used for both.

Dan
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HP Tuners for Boost....
DirtyDaveW
Forced Induction
13
Dec 1, 2016 05:37 PM
Miss on hard acceleration or WOT above 3500
armedtrigger
LT1 Based Engine Tech
10
Feb 24, 2015 08:30 PM
NEWS: GM's Oshawa plant may close after Camaro production moves
NewsBot
2010 - 2015 Camaro News, Sightings, Pictures, and Multimedia
0
Feb 6, 2015 05:00 PM
Camaro Podcast #491 - Mustang Closing in on Camaro Ring Times?
ChrisFrez
CamaroZ28.Com Podcast
0
Feb 1, 2015 08:26 AM
I weighed the Stock Torque Arm and Spohn Torque Arm.
Speeds8erM-1
Drag Racing Technique
1
Jul 28, 2002 06:18 PM
Back to Subforum
Computer Diagnostics and Tuning
View Next Unread
MAF in open loop?


Thread Tools
Search this Thread
Search this Thread:

Advanced Search

Advanced Search

All times are GMT -5. The time now is 12:29 AM.