I have a 95 gsr with a chip p28 with a type r map in it. Ever since installed its been throwing a check engine light for the o2 sensor. I replace 2 of them already and still throwing a code. I dont know what to do I have a zex kit want to install but not when its throwing a code. Woulod it be bad to use the nitrous kit? its the kit when it activates at full throttle

 

what tune are you on? need some more info bro

 

No tune at all. It has a type r base map it the chip

 

check to see if your maps are obd# correct with your harness.