hi guys im a newb to the whole subie thing so no flames please. i did some searching but didnt really find any awnsers to my problem.
the guy im buying my car from put an aftermarket up-pipe and a full megan exhaust for the car.
when i went to go look at the car it had a cel....i asked him about it and he siad it was an 02 code. but then he later tells me that there is no o2 connected at all. the only o2 he said was there when i texted him was one dangling on the front part of the car.
first question is do you only need the primary 02 sensor for this car?
second is he said there was no hole for the primary so where is the primary usually located and where should i put it.