_______ 
(  ____ )
| (    )|
| (____)|
|     __)
| (\ (   
| ) \ \__
|/   \__/
         

    ##   
   #  #  
   #     
 #####   
   #     
   #     
   #     
         

   ##    
    #    
    #    
    #    
    #    
    #    
   ###   
         

         
|\     /|
| )   ( |
| |   | |
( (   ) )
 \ \_/ / 
  \   /  
   \_/   
         

 _____ 
|_   _|
  | |  
  | |  
 _| |_ 
 \___/ 
       
       

IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now.


Visit Preferences to set your user name
Summary of change:
fw 1.1.90, VemsTune 4-26-2011 IAC Retard was activated during a full throttle pull, causing 10 degree loss of advance. Repeated issue on next log with idle retard set to "0" - IAC flag still active. * iac TPS threshold should be the key here ** So all IAC functions should be OFF above 1% TPS in this case, right? ** What is strange about these logs is that the car ran thru 1st and second gear with no IAC, an then 3rd gear the IAC turned on. * IAC Close minmap set to 86kpa ** Which sets iac to "Iac close position" (set to "0") above the setting of 86 kpa (irrelevant of TPS, and unrelated to the IAC flag) * the IAC flag should theoretically be off when TPS > IAC TPS threshold (1% in this case) ** in some logs on this page, this doesn't seem to hold ---- Log 19.13.26 - 58 second mark - IAC ON during 2nd gear pull (idle retard set to 0) http://www.vems.hu/files/KevinBlack/v3.3_u003505-2011.04.28-19.13.26.vemslog ---- Log 18.46.08 - 24 second mark - IAC is ON in 3rd gear, pulling 10 degrees of timing out (Timing is 16.5 degrees in 2nd gear, and 6 degrees in 3rd gear, IAC flag is ON) * We couldn't reproduce anything similar with any released fw (1.1.88 or 1.1.91 or unreleased 1.1.92). The vemslog was captured with the not-extensively tested (and unreleased) 1.1.90. ** We keep on looking though (and also reviewing, looking for any possible branches that could interfere) ** thinking about an extra safety condition to disable retard when TPS > iac_tps_thres (even if IAC flag is on for some unknown mysterious reason) http://www.vems.hu/files/KevinBlack/v3.3_u003505-2011.04.28-18.46.08.vemslog ----
Optional: Add document to category:
Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.