skorppi
June 11th, 2014, 07:29 AM
I´m having problems to tune idle AFR. Car is ´98 C5 stock LS1 A4. I installed Procharger and 411 PCM and COS3 (02020003). I have FIC1000 injectors on E85 (scaled IFR -30%) and 2,5 bar map. Problem is that car idles at AFR 11.8 no matter what i do. If i change idle VE -20% car still idles AFR 11.8. Target afr stays 14.73. After starting warm engine idle AFR is where i tune it about a minute. Then it slowly goes to 11.8 and stays there. If i put car in gear AFR goes 14,7 where i had tuned it. But when changing back to neutral or park AFR goes back to 11.8. Here is my tune, log-file and my custom calc_pids. I use egr-input for wide band. I´m really out of ideas what to do next.
https://dl.dropboxusercontent.com/u/40151558/COS3_pohja_0001.tun
https://dl.dropboxusercontent.com/u/40151558/AFR-tyhjis_1.efi
https://dl.dropboxusercontent.com/u/40151558/calc_pids.txt
https://dl.dropboxusercontent.com/u/40151558/COS3_pohja_0001.tun
https://dl.dropboxusercontent.com/u/40151558/AFR-tyhjis_1.efi
https://dl.dropboxusercontent.com/u/40151558/calc_pids.txt