i got a code 41 when i didnt even have an o2 sensor in the car and put one in the car that was known to be good and still have a code 41. the car should have a p74 ecu but currently has a pr4. would that be the reason or could it be the wiring somewhere? any help would be appreciated.

 

reset the ecu

 

reset your ecu like stated. and your ecu should not be a p74 as i dont belive one exsist, but rather a p75, but dont worry the pr4 is pretty much a identical ecu just came out of a different year integra. good luck

 

p74 would be an ls ecu from a 92-95 integra. obd1. pretty sure same as the p75. pr4 could either be an obd0 or an obd2. the obd0 is from a 90-93 ls. the obd2 is from a 96-99 ls.