hi guys
i have bad experience with new oem BOSCH o2 sensors they always take about 2 minute to warms up and makes fuel trims stuck full lean with longtubes headers
i never had any problems with old oem NTK o2 sensor
so, my idea to make closed loop delays about 1.30-2 minutes
in my car tune i have 2 options only :
-o2 delay temperature
-delay in secs
i have tried delay from 120 sec to 5000 ses no effect at all
it takes around 15 second form startup to enter closed loop
also tried 350c to 450c O2 temp no effect at all
600c worked fine but to much because at the idle o2 temps around 450C
tune attached
sorry for my English
thank you for any suggestions