M1tch Posted August 13, 2020 Report Share Posted August 13, 2020 Hi all, I have recently rebuilt my engine ready for boost, its currently going through break in and running it NA so I can't really idle the engine for long as its only got about 60 miles on it (although close to be broken in at this point - pulls really well). Anyway, I have always had an idle issue where it would sometimes hunt around, I have used another Link map file off someone else to change the base position tables so see if that's causing the issue - its current set to around 45% when warmed up although have noticed that it sits at around 59% when checking the realtime data. I am aware that I need to cut some fuel out - its a new engine and its using slightly more fuel due to the slightly different built vs the previous engine but its correcting around 5-8% - I have also made sure that the ignition table 1 and the idle table ignition are closely matched although it looks like I might need to change one of the breakpoints as its idling more around the 40-45KPa mark rather than the low 30s as with the old engine so might need to pull timing from the 50 kpa low load areas which might fix it. Can someone check through the log and map files attached to see if there is anything else that is the issue or if I there are any setting conflicting at all - my thoughts to fix this at this point would be to: Adjust Ignition table 1 to pull timing from the low load, low rpm cells to match closer to the idle table Disable the closed loop lambda and look to manually pull fuel out of the idle table Increase the Idle base position table slightly higher The rest of the mapping seems to be pretty good on the road, will need to tidy up the fuelling a bit with the new engine but its running well - just need to sort the idle out. Thanks in advance! Edit - just noticed that my ECU is set to closed loop idle - should I look at running open loop? 130820 idle take 2.llg 13082020 reset idle.pclr Quote Link to comment Share on other sites More sharing options...
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