so i have s300 ems, the only code i have right now is 41 because i didnt convert my o2 sensor from obd0 to obd1. I heard i didnt have to with the s300, that i could just eliminate the primary oxy sensor code. Any body know how? thanks

 

Can you go in and disable o2?

 

You can eliminate the error code by simply disabling the o2 heater (look under parameters).

 

disable the o2 and just run open loop. ive had better success with open loop. car tends to run smoother and can get just as good if not better gas mileage

 

so running open loop is better? what exactly is open loop?