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

Yet some more why do I have knock retard questions.

Thread Tools
 
Search this Thread
 
Old Oct 5, 2002 | 11:16 AM
  #1  
LTOne4Fun's Avatar
Thread Starter
Registered User
 
Joined: Aug 2000
Posts: 229
From: Glen Burnie, Md
Yet some more why do I have knock retard questions.

Stock car with LT4 KM. Always see 10-12 degrees of retard at WOT

Runs pretty good thouh so Im kinda worried about making the retard go away Thinking either a) the car likes les timing or b) it will really run good if i can get the knock to go away.
Old Oct 5, 2002 | 09:52 PM
  #2  
Dave 96TA's Avatar
Registered User
 
Joined: Aug 2001
Posts: 341
From: Jupiter, FL
Re: Yet some more why do I have knock retard questions.

Originally posted by LTOne4Fun
Stock car with LT4 KM. Always see 10-12 degrees of retard at WOT

Runs pretty good thouh so Im kinda worried about making the retard go away Thinking either a) the car likes les timing or b) it will really run good if i can get the knock to go away.
or c) someone stole your LT1 and replaced it with an LS1 Whatever its doing, the dang thing runs like a beast. I'd make sure the sensor is functioning properly...picked one up at the dealer for $36 out the door...should find it cheaper @ rockauto.com.
Old Oct 5, 2002 | 11:51 PM
  #3  
LTOne4Fun's Avatar
Thread Starter
Registered User
 
Joined: Aug 2000
Posts: 229
From: Glen Burnie, Md
An autotap log file

http://www.tbns.net/grannysshifting/atap/granny.atl

http://www.tbns.net/grannysshifting/atap/granny.log
Old Oct 6, 2002 | 12:22 AM
  #4  
Dave 96TA's Avatar
Registered User
 
Joined: Aug 2001
Posts: 341
From: Jupiter, FL
Sorry man, access denied?? You can email me the logs, address is listed.
Old Oct 6, 2002 | 05:16 PM
  #5  
90 Z28SS's Avatar
Registered User
 
Joined: Jun 2000
Posts: 2,801
From: South Bend , IN
I totally just gave up trying to figure out why my car pulls soo much timing at WOT . I zeroed out my Max retard table so it cant pull timing above 2500 rpms and now monitor Knock sensor activity solely thru knock counts . Even with all the timing my car pulled , the knock counts didnt go up at all thru the run . Given that , I'm pretty sure its all false knock .

If you have the ability to do this , absolutly verify your retard problem is from false knock readings and pay close attention to your knock counts
Old Oct 6, 2002 | 05:28 PM
  #6  
95Blackhawk's Avatar
Registered User
 
Joined: Jul 2002
Posts: 1,277
From: Phoenix, AZ
Originally posted by 90 Z28SS
I totally just gave up trying to figure out why my car pulls soo much timing at WOT . I zeroed out my Max retard table so it cant pull timing above 2500 rpms and now monitor Knock sensor activity solely thru knock counts . Even with all the timing my car pulled , the knock counts didnt go up at all thru the run . Given that , I'm pretty sure its all false knock .

If you have the ability to do this , absolutly verify your retard problem is from false knock readings and pay close attention to your knock counts

In addition to what Z28SS said try this: Put a tank of 101 or 104 (unleaded) in your car and check retard.

Since you are posting here, I assume you are able to program your car. So reduce the aggression of the retard. If you are concerned with predenotation, keep your max retard the same, but reduce how quickly it retards the timing. Try reducing it to .2 deg/millisecond or less instead of stock.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
94Maroz28
LT1 Based Engine Tech
30
Oct 27, 2015 04:38 PM
football4life
Cars For Sale
2
Oct 4, 2015 07:48 AM
SergheiS
General 1967-2002 F-Body Tech
5
Sep 29, 2015 08:56 PM
SEOJustin
Computer Diagnostics and Tuning
5
Sep 24, 2015 04:39 PM
asilomar244
LT1 Based Engine Tech
17
Jul 12, 2015 05:53 AM




All times are GMT -5. The time now is 01:20 AM.