I bought this jdm front end integra ..the car itself is an obd2..I'm putting in a 2001 integra gsr. and running a 98 gsr wire harness..I know that the harness itself have only 1 o2 sensor plug. but the car itself needs two o2 sensor..the o2 sensor on my exhaust manifold plugs up to the engine harness plugs. but where is the other one located and where does it plugs up too? Please someone help..gotta get the car inspected..to pass it..