GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Spark Advance?

Thread Tools
 
Search this Thread
 
Old Jan 7, 2007 | 12:42 AM
Share
  #1  
Cheetah's Avatar
Cheetah
Thread Starter
Senior Member
True Car Nut
 
Joined: Feb 2006
Posts: 2,896
Likes: 0
From: Somewhere different on the globe every month....
Cheetah is on a distinguished road
Default Spark Advance?
Is this the same as KR?

I had a Snap ON scanner plugged into the car tonight and it showed me 21° of Spark Advance

Is this right? Car was at running temp, in park and no codes
Reply
0
Old Jan 7, 2007 | 12:54 AM
Share
  #2  
willwren's Avatar
willwren
Junior Member
Posts like a Ricer Type-R
 
Joined: Aug 2002
Posts: 11
Likes: 13
willwren is on a distinguished road
Default
Advance is the opposite of KR.
Reply
0
Old Jan 7, 2007 | 12:56 AM
Share
  #3  
Cheetah's Avatar
Cheetah
Thread Starter
Senior Member
True Car Nut
 
Joined: Feb 2006
Posts: 2,896
Likes: 0
From: Somewhere different on the globe every month....
Cheetah is on a distinguished road
Default
So is 21° of Spark Avd good or normal at idle?
Reply
0
Old Jan 7, 2007 | 01:04 AM
Share
  #4  
wjcollier07's Avatar
wjcollier07
Junior Member
 
Joined: Aug 2005
Posts: 0
Likes: 0
wjcollier07 is on a distinguished road
Default
yeah, i remember having like 24 degrees when i scantooled mine, so i figured it was good.

just to add a question to this, not to hijack...what is a good number?
Reply
0
Old Jan 7, 2007 | 01:06 AM
Share
  #5  
willwren's Avatar
willwren
Junior Member
Posts like a Ricer Type-R
 
Joined: Aug 2002
Posts: 11
Likes: 13
willwren is on a distinguished road
Default
That'* NORMAL for idle. Not good or bad. Timing advance doesn't mean much for power at idle.

KR, when it happens, will subtract from whatever advance the pcm is trying to use.
Reply
0
Old Jan 7, 2007 | 01:11 AM
Share
  #6  
Cheetah's Avatar
Cheetah
Thread Starter
Senior Member
True Car Nut
 
Joined: Feb 2006
Posts: 2,896
Likes: 0
From: Somewhere different on the globe every month....
Cheetah is on a distinguished road
Default
What does KR stand for? I could not find it in the search :?
Reply
0
Old Jan 7, 2007 | 01:12 AM
Share
  #7  
bandit's Avatar
bandit
Senior Member
True Car Nut
 
Joined: Jan 2006
Posts: 8,029
Likes: 1
From: NEBF:06,07 | NYBF:06,07 | ONBF:06,07 | CNBF:06 & more............
bandit is on a distinguished road
Default
Knock Retard, Retard
Reply
0
Old Jan 7, 2007 | 01:15 AM
Share
  #8  
Cheetah's Avatar
Cheetah
Thread Starter
Senior Member
True Car Nut
 
Joined: Feb 2006
Posts: 2,896
Likes: 0
From: Somewhere different on the globe every month....
Cheetah is on a distinguished road
Default
Hey, you spelled someting right! That'* post #8?

J/K
Reply
0
Old Jan 7, 2007 | 01:17 AM
Share
  #9  
willwren's Avatar
willwren
Junior Member
Posts like a Ricer Type-R
 
Joined: Aug 2002
Posts: 11
Likes: 13
willwren is on a distinguished road
Default
When your knock sensors 'hear' (they're acoustic sensors) knock, they retard your timing to prevent more knock from happening. You lose power with retarded timing.
Reply
0
Old Jan 7, 2007 | 01:21 AM
Share
  #10  
Cheetah's Avatar
Cheetah
Thread Starter
Senior Member
True Car Nut
 
Joined: Feb 2006
Posts: 2,896
Likes: 0
From: Somewhere different on the globe every month....
Cheetah is on a distinguished road
Default
This scanner did not show a KR reading or i was not looking in the right spot :?

Are the sensors replaceable / easy to get to?
Reply
0



Advanced Search

All times are GMT -4. The time now is 01:56 AM.