Want to ask guys, what AFR you are getting with Z1 on sea level. I am running rich on sea level, around 11.5 idle and 12 when just cruising on 5000 - 55000 RPM . On full boost 11.5 which is perfect. But when I am riding on Sand Mountain, NV 4000 ' elevation, the AFR is perfect around 13.5 on idle, around 13 when just cruising and again perfect 11.5 on full boost. I tried different ambient pressure sensor and put brand new intake temp sensor, if will make any difference, but it is same. I was thinking maybe ECU are programed for higher elevation by default (which will make sense for snowmobiles ) and don't calculated the fuel right way when getting sea level pressure informations from the ambient pressure sensor. Any idea ? :question:
milos
milos