mike2016 Posted August 31, 2021 Report Share Posted August 31, 2021 Having a little issue with idle ignition i think. this is with AC on. at low rpm the timing is so low because idle ignition is in control, and the car is so slow. i was doing some static runs and caught one. around the 1:00 mark in the log. thats where it happened. the RPM jumps up all of a sudden when timing is recovered. Map https://1drv.ms/u/s!AoVH0biO2kWCifNYIkid8K8J3QsHnQ?e=9JS7QI Log https://1drv.ms/u/s!AoVH0biO2kWCifF6hHyMzv9IieNp6g?e=tCFuzQ Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 31, 2021 Report Share Posted August 31, 2021 The problem is the idle control is kicking in when the car is still driving. The idle ignition is trying to pull the RPM down to target when the engine is still being driven by the wheels in overrun. Usually the speed lockout is used to prevent this. Your speed signal doesnt look useable though, so you really need to fix that. Quote Link to comment Share on other sites More sharing options...
mike2016 Posted August 31, 2021 Author Report Share Posted August 31, 2021 yea that's the problem with R32. the AC fan is also going on and off. you mentioned there's a coming release that can potentially fix this issue with mechanical speedo. maybe i can do a beta test? Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 31, 2021 Report Share Posted August 31, 2021 Yes there is user configurable filtering on the DI's in the next release which isnt far off. But yours looks beyond filtering to me. Quote Link to comment Share on other sites More sharing options...
mike2016 Posted September 1, 2021 Author Report Share Posted September 1, 2021 LOL.... it is still somewhat an indication of speed moving up and down? haha i checked the tune file again, GP Speed wasn't sent to any source. and there's no driving speed source defined. the Idle control wasn't getting any speed input at all.... Can I set Driving Wheel Speed and Driven Wheel Speed both to GP Speed 1? the engine fan needs speed input but it only looks up "Driven Wheel Speed". Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 1, 2021 Report Share Posted September 1, 2021 4 hours ago, mike2016 said: i checked the tune file again, GP Speed wasn't sent to any source. and there's no driving speed source defined. Yeah I noticed that and assumed that was done on purpose since the speed was so bad. Youve got the speed sensor on DI3 assigned to LR wheel, so just set both driven and driving source to LR. You can try a math channel to filter your speed source if you want to give it a shot. like this: Quote Link to comment Share on other sites More sharing options...
essb00 Posted September 2, 2021 Report Share Posted September 2, 2021 @mike2016 To make your speedo signal useable, try making this simple passive RC low pass filter I made (you might have to change the resistor & capacitor values to suit your application). Quote Link to comment Share on other sites More sharing options...
mike2016 Posted September 6, 2021 Author Report Share Posted September 6, 2021 Thanks so much for that. will definitely give it a try! i should have some 1N4001 laying around. caps and resistors should be easy to salvage from old electronics Quote Link to comment Share on other sites More sharing options...
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