richardpalinkas Posted October 22, 2018 Share Posted October 22, 2018 This is a strange one, a previous vehicle I had on decal spark used to drop to -10 degrees even though decel spark was set at 15 deg. Now another vehicle with the same decel table and spark torque management tables still run 15 degrees and not 10 degrees. Is there a table or scaler I'm missing that allows-10 degree decel spark without changing decel spark table? Cheers Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted October 22, 2018 Share Posted October 22, 2018 Do you have a datalog? How did you determine it was running -10? Quote Link to comment Share on other sites More sharing options...
richardpalinkas Posted October 22, 2018 Author Share Posted October 22, 2018 At the time I was using forscan. And could tell by decel pips I was getting. I just changed decel spark to -10 and logged with live link and am getting -10, just wasn't sure if there was a torque management setting that also controls decel spark angle Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted October 23, 2018 Share Posted October 23, 2018 12 hours ago, richardpalinkas said: At the time I was using forscan. And could tell by decel pips I was getting. I just changed decel spark to -10 and logged with live link and am getting -10, just wasn't sure if there was a torque management setting that also controls decel spark angle Ok that makes more sense. Most likely what is happening is your TPS value is too high to be considered closed throttle. The other possibility is It also filters the entry and exit of the spark value when going into and out of the decel spark map. Check auF12629 and auF12544 for the filter constants. Quote Link to comment Share on other sites More sharing options...
richardpalinkas Posted October 23, 2018 Author Share Posted October 23, 2018 tried finding those scalers but cant find them. maybe workshop only? Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted October 23, 2018 Share Posted October 23, 2018 Yes but I doubt they will be your issue. Maybe on a quick neutral rev but not on real decel. There is probably a decel TPS a/d count setting somewhere. Quote Link to comment Share on other sites More sharing options...
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