Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Detonation

Thread Tools
 
Search this Thread
 
Old Jan 10, 2022 | 05:37 PM
  #21  
corvet786c's Avatar
Thread Starter
TECH Fanatic
15 Year Member
iTrader: (6)
 
Joined: May 2005
Posts: 1,410
Likes: 11
From: Port St. Lucie, Fl
Default

Originally Posted by Old Buzzard
Your log is showing a commanded afr of 14.08. The AEM says 15.8??
And right after that spike it knocks.
Plus that AFR is right off idle so it going to be up its not WOT.
Reply
Old Jan 11, 2022 | 07:22 AM
  #22  
mikedamageinc's Avatar
TECH Enthusiast
15 Year Member
Liked
Loved
Community Favorite
iTrader: (49)
 
Joined: Jun 2009
Posts: 723
Likes: 25
From: go get your shine box tommy
Default

Originally Posted by G Atsma
Check your exhaust. A hole will allow air in, telling the O2 it is running lean, thereby the O2 calls for more fuel, not less.
Could a hole in the header and too much fuel put a hole in a piston if running high rpms?
Reply
Old Jan 11, 2022 | 02:50 PM
  #23  
Old Buzzard's Avatar
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2009
Posts: 1,053
Likes: 470
From: Bostwick, GA.
Default

Originally Posted by corvet786c
Plus that AFR is right off idle so it going to be up its not WOT.
I understand that. I can read.
Reply
Old Jan 14, 2022 | 01:25 PM
  #24  
corvet786c's Avatar
Thread Starter
TECH Fanatic
15 Year Member
iTrader: (6)
 
Joined: May 2005
Posts: 1,410
Likes: 11
From: Port St. Lucie, Fl
Default

Hey guys, I am still trying to diagnosis this, Just scanned and got 2 degrees of knock, but it is just spikes of knock retard then imediatly falls. I think I know what it could be.
I installed hinson motor mounts, I wanted stock height but for some reason they were are lil taller, dont know why, but the intake is right up against the firewall, would this cause false knock, There is absolutly no room between the intake and cowel(fire wall). Thoughts would be great.Suggestions?
Reply
Old Jan 14, 2022 | 01:39 PM
  #25  
corvet786c's Avatar
Thread Starter
TECH Fanatic
15 Year Member
iTrader: (6)
 
Joined: May 2005
Posts: 1,410
Likes: 11
From: Port St. Lucie, Fl
Default


This graph shows barley off idle and I am getting knock spike, The engine is not under load, would indicate to me that its false knock, you guys agree, Please help!!!

ok so looking at everyone of my graphs, the knock starts off idle to acceleration. Something is hitting something or rubbing, I think my motor mounts are too high up, Do you guys agree????

Last edited by corvet786c; Jan 14, 2022 at 02:04 PM.
Reply
Old Jan 14, 2022 | 01:40 PM
  #26  
corvet786c's Avatar
Thread Starter
TECH Fanatic
15 Year Member
iTrader: (6)
 
Joined: May 2005
Posts: 1,410
Likes: 11
From: Port St. Lucie, Fl
Default


This graph shows going WOT and no Knock, any ideas Thanks
Reply




All times are GMT -5. The time now is 09:40 PM.