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Wierd timing jump: from studder thread: LOG, and IMG of timing map.

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Old Feb 7, 2011 | 07:31 AM
  #31  
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mut00 6b42
mut01 6b43

modded 88950015. Been waiting to convert to tephra once I get this running more acceptable. Is that the right informatiojn for ya?
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Old Feb 7, 2011 | 09:24 AM
  #32  
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You are logging raw load... proabably need to be logging baro+temp compensated...

Last edited by Fast_Freddie; Feb 7, 2011 at 09:26 AM.
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Old Feb 7, 2011 | 09:30 AM
  #33  
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Edited because I didn't see Freddie's update
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Old Feb 7, 2011 | 11:28 AM
  #34  
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Is this done thru the same MUT 00 MUT 01 locations just different hex values? I am digging in the official 2byte thread, but is the load + comp youre reffering to 2b+compensation? The actual values are determined with the compensation in place for a majority of the functions by the looks of it. Im still pretty green to the tuning scene, let alone 99% of this coding Also, this would suggest that in the summer time i willl want to log a different load type correct?
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Old Feb 7, 2011 | 02:44 PM
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Thats why you log 1byte (raw) for fuel and 2byte (baro+temp compensated) for timing...
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Old Mar 9, 2011 | 10:12 AM
  #36  
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. Also, my timing in the indicated section is approx 15* and decreasing I cant explain the 4* either. This is under 100 load, like 90ish.. I dont feel it studder on a WOT pull like this, but the timing jumps in exactly the same fashion under part throttle where the studder is prevalent.
Attached Thumbnails Wierd timing jump: from studder thread: LOG, and IMG of timing map.-timing-jump.png  

Last edited by 211Ratsbud; Mar 9, 2011 at 10:32 AM.
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Old Mar 9, 2011 | 01:26 PM
  #37  
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now my fuel is doing the exact same thign out of nowhere! this thing is bogus. nothing has changed in the tune. Piping is all secure.?? puzzled face.
Attached Thumbnails Wierd timing jump: from studder thread: LOG, and IMG of timing map.-what.png  

Last edited by 211Ratsbud; Mar 9, 2011 at 02:10 PM.
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Old Mar 9, 2011 | 01:47 PM
  #38  
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What fuel pump are you running?
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Old Mar 9, 2011 | 02:11 PM
  #39  
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Wallbro. You think it went out?
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Old Mar 9, 2011 | 03:05 PM
  #40  
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Might be something to check out. I know I saw a thread not long ago where someone started a pull and noticed the AFR was still at stoich. He switched out the pump and everything came back to normal.

Also make sure you didn't blow a vac hose off, I don't know if it could cause this but you may as well check it before shelling out for a new walbro.
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Old Mar 9, 2011 | 04:36 PM
  #41  
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Did the engine bay visual, but it did seem like i had to retune the entire fuel map all over the place richer plus tip in was hella spotty
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Old Mar 9, 2011 | 07:09 PM
  #42  
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Man.. I hope I didn't do any damage :'(
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Old Mar 10, 2011 | 01:32 PM
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Originally Posted by Fast_Freddie
Thats why you log 1byte (raw) for fuel and 2byte (baro+temp compensated) for timing...
IIRC, 1byte and 2byte load are both RAW load, unless you made changes to make it so 2byte read baro+temp comp load instead of RAW load.
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Old Mar 10, 2011 | 03:00 PM
  #44  
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I have the same exact issue discribed by germanevo and its driving me to the edge! Please I beg for an answer to this issue!??
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Old Mar 10, 2011 | 04:48 PM
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Originally Posted by Boosted Tuning
IIRC, 1byte and 2byte load are both RAW load, unless you made changes to make it so 2byte read baro+temp comp load instead of RAW load.
Jay that is why the baro+temp compensated was in parenthesis, thanks for the clarification though
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