Idle Misfire and Dead Time
05-18-2017, 04:19 PM
#22
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Sorry that log was not a hot restart, i thought you just wanted to see how it was idling for a base line. Ego was off during that log, had controller authority to 0. I will try the higher ego correction above a certain rpm but at idle i find that it jumps around way too much with an authority larger than 2% and is not stable AFR.
My MAT correction is under Advanced tab and called coolant related air density. I dont think you can change the ASE temp values and i think that whatever the % is for highest temp value it will use it for any temp higher. But i dont think that ASE works for some reason, only on the odd cold start will i see it be active in a log. I have wanted to use it to help with lean restarts but no go. Warm up enrich temp values i did not change from basemap, they seem to be ok 71C=160F so i thought it was ok.
I will have to post a hot restart log.
My MAT correction is under Advanced tab and called coolant related air density. I dont think you can change the ASE temp values and i think that whatever the % is for highest temp value it will use it for any temp higher. But i dont think that ASE works for some reason, only on the odd cold start will i see it be active in a log. I have wanted to use it to help with lean restarts but no go. Warm up enrich temp values i did not change from basemap, they seem to be ok 71C=160F so i thought it was ok.
I will have to post a hot restart log.
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05-18-2017, 07:19 PM
#23
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Ok i have a hot restart log, this ones not too bad normal ambient temp was around 30 and heat soaked at 40. My mat correction did help. Let me know if anybody sees anything unusual.
I also have a couple more just normal idle logs, one with ego active and the other with it off. In both it just idles like crap, afr seems stable but rpm keeps dropping out. In both logs it seems to be running the same.
Any help is appreciated, thanks in advance!
I also have a couple more just normal idle logs, one with ego active and the other with it off. In both it just idles like crap, afr seems stable but rpm keeps dropping out. In both logs it seems to be running the same.
Any help is appreciated, thanks in advance!
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06-28-2017, 04:16 PM
#24
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Ok so i have my mat correcton set up so my afr is consistent at all temps. So now no matter what if the car sits long enough it is always 16-17 afr on a hot restart. I set up o2 correction with 10% authority and using ign pulses so its more stable, seems to work well enough. O2 warms up and richens mixture. Is this the right approach for this?
Also can you guys give any tips to make the idle more stable when loads kick on? Only loads i have are rad fan, day time lights, headlights and hvac system. Normal idle seems good and around 22 kpa and as loads go on it increases to around 26 kpa with a few on. Normally its smooth with the odd misfire but with loads on there is a bit more chassis vibration and misfires more frequently. It tries to hold rpm but the odd mis will cause it to drop and then it gets into this rhythm of up and down rpm.
Also can you guys give any tips to make the idle more stable when loads kick on? Only loads i have are rad fan, day time lights, headlights and hvac system. Normal idle seems good and around 22 kpa and as loads go on it increases to around 26 kpa with a few on. Normally its smooth with the odd misfire but with loads on there is a bit more chassis vibration and misfires more frequently. It tries to hold rpm but the odd mis will cause it to drop and then it gets into this rhythm of up and down rpm.
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