2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

IAT Relocation

Thread Tools
 
Search this Thread
 
Old May 19, 2023 | 04:12 PM
  #11  
HeyYou's Avatar
HeyYou
Administrator
Veteran: Air Force
Community Favorite
15 Year Member
Community Builder
Joined: Apr 2010
Posts: 87,398
Likes: 4,213
From: Clayton MI
Default

Originally Posted by BrendonM
currently a breezy, 73° outside. At idle my reader says my IAT is sitting at 155 degrees.
That isn't real unusual....
 
Reply
Old May 19, 2023 | 04:22 PM
  #12  
BrendonM's Avatar
BrendonM
Thread Starter
|
Professional
Joined: Jan 2023
Posts: 122
Likes: 2
From: Baltimore Maryland
Default

Originally Posted by HeyYou
That isn't real unusual....
okay good, I thought that was high. Thank you
 
Reply
Old May 19, 2023 | 04:26 PM
  #13  
HeyYou's Avatar
HeyYou
Administrator
Veteran: Air Force
Community Favorite
15 Year Member
Community Builder
Joined: Apr 2010
Posts: 87,398
Likes: 4,213
From: Clayton MI
Default

It's reading manifold temp..... which is normal. Sensor gets heat-soaked, since it is screwed into it.
 
Reply
Old May 19, 2023 | 11:20 PM
  #14  
BrendonM's Avatar
BrendonM
Thread Starter
|
Professional
Joined: Jan 2023
Posts: 122
Likes: 2
From: Baltimore Maryland
Default

Originally Posted by HeyYou
It's reading manifold temp..... which is normal. Sensor gets heat-soaked, since it is screwed into it.

relocating it in a performance based orientation probably wouldn’t help then? And I have to move it anyway for the Hughes intake eventually.


edit: OR what would be a better place for it SINCE I’m moving it eventually anyway. That might be a better question to ask
 

Last edited by BrendonM; May 19, 2023 at 11:23 PM.
Reply
Old May 20, 2023 | 10:28 AM
  #15  
HeyYou's Avatar
HeyYou
Administrator
Veteran: Air Force
Community Favorite
15 Year Member
Community Builder
Joined: Apr 2010
Posts: 87,398
Likes: 4,213
From: Clayton MI
Default

Any place that it will still work. It really is only effective in open loop anyway. Once the engine goes closed loop, O2 sensors have much more of an impact.
 
Reply
Old May 20, 2023 | 11:14 AM
  #16  
Moparite's Avatar
Moparite
Grand Champion
Loved
Community Favorite
10 Year Member
Community Builder
Joined: Feb 2015
Posts: 7,435
Likes: 578
Default

Might want to check out this thread.
 
Reply
Old May 21, 2023 | 07:23 AM
  #17  
dodgetruck2's Avatar
dodgetruck2
Record Breaker
15 Year Member
Community Builder
Joined: Sep 2010
Posts: 1,743
Likes: 154
From: Parker, SD
Default

Originally Posted by HeyYou
Any place that it will still work. It really is only effective in open loop anyway. Once the engine goes closed loop, O2 sensors have much more of an impact.
what is the open/closed loop you're referencing to? I've heard the term alot but neve really been able to understand what it means.
 
Reply
Old May 21, 2023 | 08:56 AM
  #18  
Moparite's Avatar
Moparite
Grand Champion
Loved
Community Favorite
10 Year Member
Community Builder
Joined: Feb 2015
Posts: 7,435
Likes: 578
Default

Engine runs in open loop until it reaches operating temp then goes into closed loop.
 
Reply
Old May 21, 2023 | 10:58 AM
  #19  
HeyYou's Avatar
HeyYou
Administrator
Veteran: Air Force
Community Favorite
15 Year Member
Community Builder
Joined: Apr 2010
Posts: 87,398
Likes: 4,213
From: Clayton MI
Default

Yeah, essentially what Moparite said. Newer cars/trucks get into closed loop faster due to heated O2 sensors, etc. But, basically, in open loop, the PCM runs the engine based on data programmed into it, in closed loop, the PCM pays attention to the O2 sensors to monitor fuel mixture, and correct as necessary.
 
Reply




All times are GMT -4. The time now is 05:40 AM.